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Acta Crystallogr Sect E Struct Rep Online. 2010 January 1; 66(Pt 1): m6.
Published online 2009 December 4. doi:  10.1107/S1600536809051708
PMCID: PMC2980055

Bis(N-triisopropyl­silyl­quinolin-8-aminato)nickel(II)

Abstract

The reddish-brown title complex, [Ni(C18H27N2Si)2], was prepared via the salt-metathesis reaction of N-triisopropyl­silyl-8-amido­quinoline lithium with nickelocene (NiCp2). The asymmetric unit contains two symmetry-independent mol­ecules with the Ni atoms in distorted tetra­hedral environments.

Related literature

The reaction of N-trialkyl­silyl-8-amido­quinoline lithium (Jonas et al., 2000 [triangle]) with nickelocene yields paramagnetic bis­(N-trialkyl­silyl-8-amido­quinoline)nickel(II) (Lee et al., 2000 [triangle]). The isostructural zinc and magnesium derivatives are thermally stable whereas bis­(N-trimethyl­silyl-8-amido­quinoline) cadmium(II) liberates dimethyl­cadmium at 513 K (Englehardt et al., 1991 [triangle]). Transamination of Zn[N(SiMe3)2]2 with N-trialkyl­silyl-8-amino­quinoline gives heteroleptic N-trialkyl­silyl-8-amido­quinoline (Malassa et al., 2008 [triangle]). In contrast to these 8-amido­quinoline complexes, neutral 8-amino­quinoline can easily act as a bidentate base to metal cations, see: Engelter et al. (1989 [triangle]); Fanning & Taylor (1965 [triangle]); Nast et al. (1961 [triangle]); Nielsen & Dahl (1966 [triangle]).

An external file that holds a picture, illustration, etc.
Object name is e-66-000m6-scheme1.jpg

Experimental

Crystal data

  • [Ni(C18H27N2Si)2]
  • M r = 657.72
  • Triclinic, An external file that holds a picture, illustration, etc.
Object name is e-66-000m6-efi1.jpg
  • a = 12.3062 (5) Å
  • b = 17.7015 (5) Å
  • c = 18.4194 (6) Å
  • α = 68.956 (2)°
  • β = 72.025 (2)°
  • γ = 85.540 (2)°
  • V = 3559.6 (2) Å3
  • Z = 4
  • Mo Kα radiation
  • μ = 0.64 mm−1
  • T = 183 K
  • 0.04 × 0.04 × 0.04 mm

Data collection

  • Nonius KappaCCD diffractometer
  • 25470 measured reflections
  • 15935 independent reflections
  • 12031 reflections with I > 2σ(I)
  • R int = 0.034

Refinement

  • R[F 2 > 2σ(F 2)] = 0.047
  • wR(F 2) = 0.123
  • S = 1.02
  • 15935 reflections
  • 799 parameters
  • H-atom parameters constrained
  • Δρmax = 0.50 e Å−3
  • Δρmin = −0.44 e Å−3

Data collection: COLLECT (Nonius, 1998 [triangle]); cell refinement: DENZO (Otwinowski & Minor, 1997 [triangle]); data reduction: DENZO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 [triangle]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 [triangle]); molecular graphics: SHELXTL/PC (Sheldrick, 2008 [triangle]); software used to prepare material for publication: SHELXL97.

Supplementary Material

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536809051708/jh2120sup1.cif

Structure factors: contains datablocks I. DOI: 10.1107/S1600536809051708/jh2120Isup2.hkl

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

Acknowledgments

The authors gratefully acknowledge financial support by the Deutsche Forschungsgemeinschaft (DFG, Bonn-Bad Godesberg, Germany) and AM thanks the Carl-Zeiss-Stiftung (Germany) for a generous PhD scholarship.

supplementary crystallographic information

Comment

The reaction of N-trialkylsilyl-8-amidoquinoline lithium (Jonas et al. 2000) with nickelocene yields paramagnetic bis(N-trialkylsilyl-8-amidoquinoline)nickel(II) (Lee et al. 2000) (SiR3 = SiMe3, SiMe2tBu) with the metal centers in distorted tetrahedral environments. Isostructural zinc and magnesium derivatives are thermally stable whereas bis(N-trimethylsilyl-8-amidoquinoline)cadmium(II) liberates dimethylcadmium at 240°C (Englehardt et al. 1991). Transamination of Zn[N(SiMe3)2]2 with N-trialkylsilyl-8-aminoquinoline gives heteroleptic N-trialkylsilyl-8-amidoquinoline zinc(II)bis(trimethylsilyl)amide (Malassa et al. 2008). The metallation of 8-aminoquinoline with [(tmeda)NiMe2] yields bis(8-amidoquinoline) nickel(II) with a square planar coordinated nickel center. In contrast to these rather rare examples of 8-amidoquinoline complexes, neutral 8-aminoquinoline can easily act as a bidentate base to metal cations (see e.g. Engelter et al. 1989, Fanning et al. 1965, Nast et al. 1961, Nielsen et al. 1966).

The reaction of nickelocene with N-triisopropylsilyl-8-amidoquinoline lithium yields the reddish-brown title complex bis(N-triisopropylsilyl-8-amidoquinoline) nickel(II). This compound crystallizes from diethyl ether with two crystallographically independent molecules with similar configurations. The nickel atoms are in distorted tetrahedral environments despite the fact that amido and pyridyl bases have to be considered as strong Lewis bases because the bulky triisopropylsilyl groups prevent a distorted square planar coordination sphere of the Ni centers. Due to an additional electrostatic attraction the Ni—Namido bond lengths (av. value 196.4 pm) are smaller than the Ni—Npyridyl distances with an average value of 200.3 pm.

Experimental

All manipulations were carried out by using modified Schlenk techniques under an atmosphere of argon. Prior to use, THF and diethyl ether were distilled over sodium/benzophenone.

N-Triisopropylsilyl-8-aminochinolin (0.46 g, 1.54 mmol), dissolved at -78°C in 10 ml of THF, was lithiated with 1 mL of a 1,6 M solution of nBuLi in hexane. To this solution 0.15 g of [NiCp2] (1.54 mmol) in 13 ml of THF was added drop-wise while a temperature of -78°C was maintained in the reaction flask. The cooling bath was removed and the red-brown reaction mixture stirred for additional 12 h. Thereafter, all volatiles were removed in vacuum and the residue dissolved in 20 ml of diethyl ether. After filtration the volume of the mother liquor was reduced to half of the original volume. At -20°C reddish brown crystals precipitated. Yield: 0.10 g (0.15 mmol, 21%). IR (Nujol, KBr windows, cm-1): 1562 m,1508 m, 1496 m, 1365 m, 1315 s, 1280 m, 1261 m, 1224 w, 1115 m, 1096 m, 1015 m,934 m, 913 w, 882 m, 819 s, 790 m, 757 m, 739 m, 673 w, 648 w, 621 w, 588 w,561 w, 532 w, 500 w. MS (DEI (%)): m/z = 656 (M+, 5), 614 ([M - iPr]+, 4), 300 (22), 257 (100), 171 (58). Elemental analysis (C36H54N4NiSi2; 657,71 g mol-1): calcd. C 65.74, H 8.28, N 8.52; found C 62.82, H 9.00, N 7.48.

Refinement

All hydrogen atoms were set to idealized positions and refined with 1.2 times (1.5 for methyl groups) the isotropic displacement parameter of the corresponding carbon atom.

Figures

Fig. 1.
Molecular structure of I. Displacement ellipsoids are drawn at the 40% probability level. H atoms have been omitted for clarity.

Crystal data

[Ni(C18H27N2Si)2]Z = 4
Mr = 657.72F(000) = 1416
Triclinic, P1Dx = 1.227 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 12.3062 (5) ÅCell parameters from 25470 reflections
b = 17.7015 (5) Åθ = 2.0–27.5°
c = 18.4194 (6) ŵ = 0.64 mm1
α = 68.956 (2)°T = 183 K
β = 72.025 (2)°Prism, brown
γ = 85.540 (2)°0.04 × 0.04 × 0.04 mm
V = 3559.6 (2) Å3

Data collection

Nonius KappaCCD diffractometer12031 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.034
graphiteθmax = 27.5°, θmin = 2.0°
phi– + ω–scanh = −15→14
25470 measured reflectionsk = −22→21
15935 independent reflectionsl = −23→21

Refinement

Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.047Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.123H-atom parameters constrained
S = 1.02w = 1/[σ2(Fo2) + (0.0507P)2 + 2.9757P] where P = (Fo2 + 2Fc2)/3
15935 reflections(Δ/σ)max = 0.001
799 parametersΔρmax = 0.50 e Å3
0 restraintsΔρmin = −0.44 e Å3

Special details

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)

xyzUiso*/Ueq
Ni1A0.22671 (3)0.404287 (18)0.365455 (19)0.02670 (8)
Si1A0.31556 (6)0.30222 (4)0.52291 (4)0.02685 (15)
Si2A0.28061 (6)0.60410 (4)0.27705 (4)0.02624 (15)
N1A0.06609 (18)0.36971 (12)0.38461 (13)0.0289 (4)
N2A0.20579 (17)0.32527 (12)0.47700 (12)0.0262 (4)
N3A0.30614 (18)0.35165 (12)0.28448 (13)0.0294 (5)
N4A0.30124 (18)0.50415 (12)0.27932 (12)0.0270 (4)
C1A0.0024 (2)0.39528 (16)0.33440 (17)0.0353 (6)
H1AA0.03350.43610.28250.042*
C2A−0.1088 (2)0.36428 (18)0.35519 (18)0.0394 (6)
H2AA−0.15270.38380.31830.047*
C3A−0.1527 (2)0.30520 (17)0.42981 (18)0.0360 (6)
H3AA−0.22820.28400.44510.043*
C4A−0.0872 (2)0.27538 (15)0.48434 (16)0.0296 (5)
C5A−0.1253 (2)0.21290 (16)0.56120 (17)0.0338 (6)
H5AA−0.19970.18860.58000.041*
C6A−0.0529 (2)0.18804 (16)0.60827 (17)0.0347 (6)
H6AA−0.07800.14560.65970.042*
C7A0.0574 (2)0.22324 (15)0.58293 (16)0.0314 (5)
H7AA0.10400.20370.61800.038*
C8A0.1011 (2)0.28572 (14)0.50834 (15)0.0266 (5)
C9A0.0240 (2)0.31006 (14)0.45882 (15)0.0270 (5)
C10A0.3044 (2)0.27422 (16)0.29294 (18)0.0352 (6)
H10A0.25040.23790.33910.042*
C11A0.3797 (2)0.24414 (16)0.23586 (19)0.0378 (6)
H11A0.37720.18820.24360.045*
C12A0.4564 (2)0.29635 (17)0.16916 (18)0.0368 (6)
H12A0.50820.27650.13040.044*
C13A0.4596 (2)0.38015 (16)0.15709 (16)0.0311 (5)
C14A0.5352 (2)0.43815 (17)0.08965 (16)0.0358 (6)
H14A0.58900.42270.04830.043*
C15A0.5295 (2)0.51736 (17)0.08480 (16)0.0365 (6)
H15A0.57980.55680.03900.044*
C16A0.4522 (2)0.54227 (16)0.14508 (16)0.0328 (6)
H16A0.45130.59800.13850.039*
C17A0.3765 (2)0.48775 (15)0.21454 (15)0.0273 (5)
C18A0.3817 (2)0.40518 (15)0.21780 (15)0.0275 (5)
C19A0.3501 (2)0.19049 (15)0.55095 (16)0.0312 (5)
H19A0.28680.16080.60070.037*
C20A0.3507 (3)0.15513 (17)0.48601 (19)0.0406 (7)
H20A0.36580.09720.50530.061*
H20B0.41040.18320.43520.061*
H20C0.27610.16240.47610.061*
C21A0.4609 (2)0.17276 (17)0.57561 (19)0.0396 (6)
H21A0.47320.11440.59220.059*
H21B0.45410.19080.62120.059*
H21C0.52570.20180.52910.059*
C22A0.2903 (2)0.32499 (15)0.62029 (16)0.0330 (6)
H22A0.36710.32090.62910.040*
C23A0.2123 (3)0.2658 (2)0.69940 (18)0.0531 (8)
H23A0.21760.27840.74590.080*
H23B0.23610.21040.70530.080*
H23C0.13310.27090.69770.080*
C24A0.2552 (3)0.41099 (17)0.61376 (18)0.0388 (6)
H24A0.25460.41990.66340.058*
H24B0.17860.41890.60720.058*
H24C0.30980.44960.56640.058*
C25A0.4425 (2)0.37000 (15)0.44380 (16)0.0315 (6)
H25A0.40950.42180.41610.038*
C26A0.5281 (2)0.39364 (18)0.47874 (19)0.0414 (7)
H26A0.58880.42980.43400.062*
H26B0.56180.34470.50810.062*
H26C0.48820.42150.51630.062*
C27A0.5117 (2)0.33914 (18)0.37565 (17)0.0394 (6)
H27A0.56180.38320.33140.059*
H27B0.45940.32020.35450.059*
H27C0.55820.29430.39750.059*
C28A0.1732 (2)0.60344 (15)0.37508 (16)0.0308 (5)
H28A0.16900.66090.37270.037*
C29A0.0512 (2)0.57628 (17)0.38801 (19)0.0397 (6)
H29A−0.00010.58310.43760.059*
H29B0.04990.51920.39360.059*
H29C0.02600.60930.34110.059*
C30A0.2114 (3)0.55495 (16)0.45009 (16)0.0363 (6)
H30A0.15770.56230.49870.054*
H30B0.28810.57420.44250.054*
H30C0.21270.49740.45700.054*
C31A0.4195 (2)0.65577 (15)0.26385 (16)0.0329 (6)
H31A0.45480.68280.20370.040*
C32A0.5084 (3)0.59713 (19)0.2939 (2)0.0444 (7)
H32A0.58130.62680.27670.067*
H32B0.51900.55430.27050.067*
H32C0.48160.57290.35350.067*
C33A0.4021 (3)0.72383 (17)0.29984 (19)0.0431 (7)
H33A0.47570.75180.28510.065*
H33B0.37100.70040.35940.065*
H33C0.34870.76250.27790.065*
C34A0.2277 (2)0.66770 (15)0.18740 (16)0.0340 (6)
H34A0.29690.68600.13860.041*
C35A0.1496 (3)0.61987 (18)0.1671 (2)0.0505 (8)
H35A0.13390.65360.11640.076*
H35B0.07760.60450.21160.076*
H35C0.18750.57100.16040.076*
C36A0.1695 (3)0.74443 (17)0.1978 (2)0.0462 (7)
H36A0.14570.77520.14960.069*
H36B0.22320.77780.20430.069*
H36C0.10220.72940.24630.069*
Ni1B0.05709 (3)0.186465 (18)0.17978 (2)0.02737 (9)
Si1B−0.21235 (6)0.14247 (4)0.21518 (4)0.02792 (15)
Si2B0.23432 (6)0.11779 (4)0.04677 (4)0.02724 (15)
N1B0.08118 (18)0.30640 (12)0.14648 (13)0.0299 (5)
N2B−0.10400 (18)0.21276 (12)0.19249 (13)0.0277 (4)
N3B0.09058 (18)0.14248 (12)0.28678 (13)0.0286 (4)
N4B0.18624 (17)0.12248 (12)0.14461 (13)0.0269 (4)
C1B0.1775 (2)0.34911 (17)0.12183 (17)0.0365 (6)
H1BA0.24670.32120.12130.044*
C2B0.1822 (3)0.43342 (17)0.09647 (18)0.0408 (7)
H2BA0.25310.46220.07890.049*
C3B0.0829 (3)0.47395 (16)0.09732 (18)0.0393 (6)
H3BA0.08500.53150.07840.047*
C4B−0.0228 (2)0.43081 (15)0.12615 (16)0.0323 (6)
C5B−0.1300 (3)0.46732 (16)0.13364 (19)0.0397 (7)
H5BA−0.13480.52450.11800.048*
C6B−0.2269 (2)0.41879 (16)0.16390 (19)0.0386 (6)
H6BA−0.29910.44320.17050.046*
C7B−0.2234 (2)0.33404 (15)0.18565 (18)0.0339 (6)
H7BA−0.29320.30310.20690.041*
C8B−0.1200 (2)0.29407 (14)0.17684 (15)0.0286 (5)
C9B−0.0194 (2)0.34539 (15)0.14931 (15)0.0285 (5)
C10B0.0365 (2)0.15432 (17)0.35555 (17)0.0359 (6)
H10B−0.02240.19230.35570.043*
C11B0.0626 (3)0.11292 (17)0.42832 (17)0.0390 (6)
H11B0.02130.12230.47700.047*
C12B0.1483 (3)0.05889 (17)0.42846 (17)0.0382 (6)
H12B0.16640.03020.47760.046*
C13B0.2098 (2)0.04562 (15)0.35589 (16)0.0313 (5)
C14B0.3022 (2)−0.00709 (17)0.34931 (18)0.0380 (6)
H14B0.3256−0.03780.39570.046*
C15B0.3568 (2)−0.01270 (17)0.27480 (19)0.0407 (7)
H15B0.4202−0.04680.27010.049*
C16B0.3239 (2)0.02947 (16)0.20487 (17)0.0335 (6)
H16B0.36570.02330.15470.040*
C17B0.2307 (2)0.08064 (14)0.20711 (15)0.0268 (5)
C18B0.1770 (2)0.08895 (14)0.28493 (15)0.0274 (5)
C19B−0.3310 (2)0.13621 (16)0.31244 (17)0.0349 (6)
H19B−0.38360.18090.29680.042*
C20B−0.2851 (3)0.1516 (2)0.37487 (19)0.0461 (7)
H20D−0.34900.15090.42270.069*
H20E−0.24450.20450.35000.069*
H20F−0.23240.10920.39170.069*
C21B−0.4032 (3)0.05698 (18)0.3521 (2)0.0460 (7)
H21D−0.46490.05910.40000.069*
H21E−0.35490.01140.36900.069*
H21F−0.43610.04980.31280.069*
C22B−0.2766 (2)0.17488 (17)0.12737 (17)0.0359 (6)
H22B−0.30410.23070.12250.043*
C23B−0.1873 (3)0.1844 (2)0.04511 (19)0.0522 (8)
H23D−0.22280.20710.00130.078*
H23E−0.15750.13130.04550.078*
H23F−0.12440.22080.03590.078*
C24B−0.3821 (3)0.12528 (19)0.1391 (2)0.0438 (7)
H24D−0.41190.15050.09260.066*
H24E−0.44110.12390.18950.066*
H24F−0.36030.06990.14260.066*
C25B−0.1370 (2)0.04357 (15)0.22502 (18)0.0364 (6)
H25B−0.06180.05850.18130.044*
C26B−0.1063 (3)0.00331 (17)0.3047 (2)0.0468 (8)
H26D−0.0512−0.03880.29900.070*
H26E−0.1756−0.02110.34950.070*
H26F−0.07260.04410.31670.070*
C27B−0.1926 (3)−0.02034 (17)0.2077 (2)0.0448 (7)
H27D−0.1431−0.06670.20960.067*
H27E−0.20300.00340.15340.067*
H27F−0.2670−0.03840.24890.067*
C28B0.1323 (2)0.18389 (16)−0.00721 (17)0.0350 (6)
H28B0.05700.17680.03610.042*
C29B0.1096 (3)0.15814 (19)−0.07238 (19)0.0461 (7)
H29D0.05490.1943−0.09560.069*
H29E0.07800.1024−0.04760.069*
H29F0.18140.1612−0.11560.069*
C30B0.1611 (3)0.27536 (17)−0.0431 (2)0.0472 (7)
H30D0.09760.3045−0.06110.071*
H30E0.23060.2870−0.08980.071*
H30F0.17340.2929−0.00140.071*
C31B0.2215 (2)0.01270 (16)0.04315 (17)0.0343 (6)
H31B0.22120.0222−0.01370.041*
C32B0.1061 (3)−0.02930 (17)0.0982 (2)0.0460 (7)
H32D0.0988−0.08010.09000.069*
H32E0.04450.00610.08460.069*
H32F0.1010−0.04080.15530.069*
C33B0.3175 (3)−0.04613 (17)0.0568 (2)0.0453 (7)
H33D0.3105−0.09090.03900.068*
H33E0.3117−0.06750.11490.068*
H33F0.3917−0.01760.02530.068*
C34B0.3898 (2)0.15321 (16)−0.00755 (17)0.0345 (6)
H34B0.43610.11040.02060.041*
C35B0.4217 (3)0.23240 (18)−0.0014 (2)0.0458 (7)
H35D0.50490.2415−0.02230.069*
H35E0.39490.22860.05580.069*
H35F0.38560.2777−0.03380.069*
C36B0.4272 (3)0.15781 (19)−0.09643 (18)0.0465 (7)
H36D0.51000.1686−0.11980.070*
H36E0.38770.2015−0.12770.070*
H36F0.40770.1062−0.09870.070*

Atomic displacement parameters (Å2)

U11U22U33U12U13U23
Ni1A0.02734 (17)0.02433 (16)0.02715 (16)−0.00333 (12)−0.00748 (13)−0.00737 (12)
Si1A0.0262 (4)0.0254 (3)0.0295 (3)−0.0019 (3)−0.0103 (3)−0.0081 (3)
Si2A0.0282 (4)0.0235 (3)0.0263 (3)−0.0022 (3)−0.0077 (3)−0.0076 (3)
N1A0.0300 (11)0.0262 (10)0.0319 (11)0.0023 (8)−0.0117 (9)−0.0103 (9)
N2A0.0251 (11)0.0252 (10)0.0274 (10)−0.0027 (8)−0.0071 (8)−0.0080 (8)
N3A0.0294 (11)0.0289 (11)0.0325 (11)−0.0006 (8)−0.0123 (9)−0.0110 (9)
N4A0.0290 (11)0.0246 (10)0.0274 (10)−0.0009 (8)−0.0085 (9)−0.0089 (8)
C1A0.0366 (15)0.0343 (14)0.0360 (14)0.0022 (11)−0.0150 (12)−0.0103 (11)
C2A0.0346 (15)0.0462 (16)0.0482 (17)0.0080 (12)−0.0230 (13)−0.0216 (14)
C3A0.0270 (14)0.0411 (15)0.0504 (17)0.0026 (11)−0.0139 (12)−0.0265 (13)
C4A0.0265 (13)0.0289 (12)0.0378 (14)0.0006 (10)−0.0082 (11)−0.0180 (11)
C5A0.0251 (13)0.0319 (13)0.0446 (15)−0.0025 (10)−0.0041 (11)−0.0183 (12)
C6A0.0333 (14)0.0293 (13)0.0338 (14)−0.0015 (11)−0.0022 (11)−0.0082 (11)
C7A0.0284 (13)0.0324 (13)0.0305 (13)0.0011 (10)−0.0067 (11)−0.0095 (11)
C8A0.0250 (12)0.0231 (11)0.0328 (13)0.0006 (9)−0.0065 (10)−0.0128 (10)
C9A0.0268 (13)0.0248 (12)0.0324 (13)0.0006 (9)−0.0081 (10)−0.0142 (10)
C10A0.0325 (14)0.0315 (13)0.0447 (15)−0.0021 (11)−0.0154 (12)−0.0132 (12)
C11A0.0338 (15)0.0329 (14)0.0578 (18)0.0034 (11)−0.0204 (13)−0.0238 (13)
C12A0.0316 (14)0.0428 (15)0.0502 (17)0.0085 (12)−0.0191 (13)−0.0284 (13)
C13A0.0267 (13)0.0379 (14)0.0361 (14)0.0045 (10)−0.0153 (11)−0.0174 (11)
C14A0.0292 (14)0.0470 (16)0.0316 (14)0.0048 (12)−0.0070 (11)−0.0168 (12)
C15A0.0330 (15)0.0429 (15)0.0287 (13)−0.0008 (12)−0.0056 (11)−0.0096 (11)
C16A0.0343 (14)0.0331 (13)0.0305 (13)−0.0009 (11)−0.0085 (11)−0.0111 (11)
C17A0.0266 (13)0.0292 (12)0.0283 (12)−0.0002 (10)−0.0117 (10)−0.0097 (10)
C18A0.0261 (13)0.0313 (12)0.0297 (12)0.0014 (10)−0.0141 (10)−0.0114 (10)
C19A0.0313 (14)0.0265 (12)0.0363 (14)0.0003 (10)−0.0135 (11)−0.0088 (10)
C20A0.0475 (17)0.0316 (14)0.0480 (17)0.0018 (12)−0.0211 (14)−0.0148 (12)
C21A0.0397 (16)0.0329 (14)0.0496 (17)0.0041 (12)−0.0222 (13)−0.0117 (12)
C22A0.0374 (15)0.0313 (13)0.0334 (14)0.0002 (11)−0.0151 (12)−0.0110 (11)
C23A0.076 (2)0.0461 (18)0.0320 (15)−0.0138 (16)−0.0083 (15)−0.0115 (13)
C24A0.0406 (16)0.0411 (15)0.0406 (15)0.0058 (12)−0.0162 (13)−0.0188 (13)
C25A0.0279 (13)0.0294 (13)0.0345 (14)−0.0017 (10)−0.0104 (11)−0.0068 (11)
C26A0.0314 (15)0.0434 (16)0.0510 (17)−0.0084 (12)−0.0118 (13)−0.0171 (14)
C27A0.0302 (14)0.0466 (16)0.0377 (15)−0.0037 (12)−0.0075 (12)−0.0118 (13)
C28A0.0344 (14)0.0246 (12)0.0330 (13)0.0005 (10)−0.0077 (11)−0.0115 (10)
C29A0.0301 (15)0.0388 (15)0.0458 (16)−0.0005 (11)−0.0044 (12)−0.0155 (13)
C30A0.0430 (16)0.0329 (14)0.0309 (14)−0.0004 (11)−0.0083 (12)−0.0107 (11)
C31A0.0349 (15)0.0330 (13)0.0316 (13)−0.0089 (11)−0.0091 (11)−0.0111 (11)
C32A0.0377 (16)0.0479 (17)0.0546 (18)−0.0028 (13)−0.0213 (14)−0.0191 (14)
C33A0.0496 (18)0.0385 (15)0.0450 (16)−0.0133 (13)−0.0129 (14)−0.0171 (13)
C34A0.0385 (15)0.0292 (13)0.0319 (13)−0.0007 (11)−0.0120 (12)−0.0064 (11)
C35A0.070 (2)0.0395 (16)0.0576 (19)0.0039 (15)−0.0422 (18)−0.0160 (14)
C36A0.061 (2)0.0297 (14)0.0488 (17)0.0057 (13)−0.0256 (15)−0.0084 (13)
Ni1B0.02493 (17)0.02550 (16)0.03428 (18)0.00398 (12)−0.01139 (13)−0.01210 (13)
Si1B0.0247 (3)0.0248 (3)0.0355 (4)0.0003 (3)−0.0091 (3)−0.0120 (3)
Si2B0.0252 (3)0.0255 (3)0.0302 (3)0.0000 (3)−0.0065 (3)−0.0104 (3)
N1B0.0271 (11)0.0304 (11)0.0348 (11)−0.0010 (8)−0.0099 (9)−0.0134 (9)
N2B0.0260 (11)0.0243 (10)0.0354 (11)0.0017 (8)−0.0102 (9)−0.0129 (9)
N3B0.0269 (11)0.0282 (10)0.0327 (11)−0.0006 (8)−0.0092 (9)−0.0125 (9)
N4B0.0235 (10)0.0261 (10)0.0318 (11)0.0029 (8)−0.0090 (9)−0.0108 (9)
C1B0.0292 (14)0.0394 (15)0.0430 (15)−0.0025 (11)−0.0101 (12)−0.0169 (12)
C2B0.0399 (16)0.0382 (15)0.0449 (16)−0.0097 (12)−0.0110 (13)−0.0148 (13)
C3B0.0484 (18)0.0278 (13)0.0436 (16)−0.0072 (12)−0.0166 (13)−0.0109 (12)
C4B0.0429 (16)0.0247 (12)0.0339 (14)0.0001 (11)−0.0171 (12)−0.0109 (10)
C5B0.0498 (18)0.0240 (12)0.0529 (17)0.0089 (12)−0.0268 (14)−0.0142 (12)
C6B0.0356 (15)0.0342 (14)0.0555 (18)0.0123 (11)−0.0237 (13)−0.0206 (13)
C7B0.0270 (14)0.0310 (13)0.0492 (16)0.0031 (10)−0.0159 (12)−0.0174 (12)
C8B0.0303 (13)0.0251 (12)0.0335 (13)0.0021 (10)−0.0135 (11)−0.0110 (10)
C9B0.0303 (13)0.0285 (12)0.0312 (13)0.0014 (10)−0.0139 (11)−0.0118 (10)
C10B0.0321 (15)0.0383 (14)0.0406 (15)0.0012 (11)−0.0086 (12)−0.0198 (12)
C11B0.0423 (16)0.0433 (15)0.0340 (14)−0.0049 (12)−0.0086 (12)−0.0178 (12)
C12B0.0437 (17)0.0385 (15)0.0330 (14)−0.0084 (12)−0.0154 (12)−0.0079 (12)
C13B0.0307 (14)0.0300 (13)0.0338 (13)−0.0042 (10)−0.0129 (11)−0.0083 (11)
C14B0.0362 (15)0.0360 (14)0.0412 (16)0.0043 (11)−0.0200 (13)−0.0066 (12)
C15B0.0316 (15)0.0374 (15)0.0522 (18)0.0095 (12)−0.0183 (13)−0.0119 (13)
C16B0.0275 (13)0.0349 (14)0.0376 (14)0.0042 (10)−0.0094 (11)−0.0133 (11)
C17B0.0249 (12)0.0233 (11)0.0334 (13)−0.0027 (9)−0.0101 (10)−0.0096 (10)
C18B0.0255 (12)0.0251 (12)0.0339 (13)−0.0033 (9)−0.0118 (10)−0.0096 (10)
C19B0.0282 (14)0.0347 (14)0.0391 (15)0.0012 (11)−0.0058 (11)−0.0136 (12)
C20B0.0460 (18)0.0536 (18)0.0423 (17)0.0011 (14)−0.0099 (14)−0.0241 (14)
C21B0.0375 (16)0.0423 (16)0.0493 (18)−0.0074 (13)−0.0020 (13)−0.0134 (14)
C22B0.0330 (15)0.0350 (14)0.0449 (16)−0.0003 (11)−0.0170 (12)−0.0154 (12)
C23B0.0471 (19)0.070 (2)0.0388 (16)−0.0035 (16)−0.0153 (14)−0.0155 (15)
C24B0.0363 (16)0.0483 (17)0.0584 (19)0.0009 (13)−0.0214 (14)−0.0261 (15)
C25B0.0306 (14)0.0247 (12)0.0505 (17)0.0005 (10)−0.0072 (12)−0.0137 (12)
C26B0.0405 (17)0.0289 (14)0.068 (2)0.0029 (12)−0.0220 (15)−0.0092 (14)
C27B0.0430 (17)0.0291 (14)0.062 (2)0.0000 (12)−0.0094 (15)−0.0204 (13)
C28B0.0348 (15)0.0376 (14)0.0333 (14)0.0037 (11)−0.0116 (11)−0.0126 (11)
C29B0.0547 (19)0.0499 (17)0.0411 (16)0.0024 (14)−0.0241 (15)−0.0166 (14)
C30B0.059 (2)0.0357 (15)0.0495 (18)0.0107 (14)−0.0252 (15)−0.0118 (13)
C31B0.0318 (14)0.0319 (13)0.0426 (15)0.0007 (11)−0.0087 (12)−0.0190 (12)
C32B0.0364 (16)0.0350 (15)0.066 (2)−0.0039 (12)−0.0061 (14)−0.0237 (14)
C33B0.0395 (17)0.0351 (15)0.066 (2)0.0051 (12)−0.0124 (15)−0.0270 (14)
C34B0.0302 (14)0.0318 (13)0.0367 (14)−0.0034 (11)−0.0048 (11)−0.0100 (11)
C35B0.0343 (16)0.0451 (17)0.0565 (19)−0.0094 (13)−0.0112 (14)−0.0162 (14)
C36B0.0413 (17)0.0463 (17)0.0400 (16)−0.0031 (13)0.0011 (13)−0.0116 (13)

Geometric parameters (Å, °)

Ni1A—N4A1.955 (2)Ni1B—N4B1.960 (2)
Ni1A—N2A1.977 (2)Ni1B—N2B1.962 (2)
Ni1A—N1A2.002 (2)Ni1B—N3B2.002 (2)
Ni1A—N3A2.001 (2)Ni1B—N1B2.005 (2)
Si1A—N2A1.754 (2)Si1B—N2B1.744 (2)
Si1A—C22A1.906 (3)Si1B—C25B1.892 (3)
Si1A—C19A1.905 (3)Si1B—C22B1.903 (3)
Si1A—C25A1.907 (3)Si1B—C19B1.903 (3)
Si2A—N4A1.755 (2)Si2B—N4B1.745 (2)
Si2A—C28A1.876 (3)Si2B—C34B1.900 (3)
Si2A—C31A1.909 (3)Si2B—C31B1.906 (3)
Si2A—C34A1.906 (3)Si2B—C28B1.908 (3)
N1A—C1A1.328 (3)N1B—C1B1.321 (3)
N1A—C9A1.365 (3)N1B—C9B1.365 (3)
N2A—C8A1.369 (3)N2B—C8B1.374 (3)
N3A—C10A1.324 (3)N3B—C10B1.319 (3)
N3A—C18A1.366 (3)N3B—C18B1.369 (3)
N4A—C17A1.375 (3)N4B—C17B1.373 (3)
C1A—C2A1.401 (4)C1B—C2B1.395 (4)
C1A—H1AA0.9500C1B—H1BA0.9500
C2A—C3A1.368 (4)C2B—C3B1.367 (4)
C2A—H2AA0.9500C2B—H2BA0.9500
C3A—C4A1.411 (4)C3B—C4B1.412 (4)
C3A—H3AA0.9500C3B—H3BA0.9500
C4A—C9A1.413 (4)C4B—C5B1.413 (4)
C4A—C5A1.412 (4)C4B—C9B1.417 (3)
C5A—C6A1.372 (4)C5B—C6B1.369 (4)
C5A—H5AA0.9500C5B—H5BA0.9500
C6A—C7A1.407 (4)C6B—C7B1.408 (4)
C6A—H6AA0.9500C6B—H6BA0.9500
C7A—C8A1.395 (3)C7B—C8B1.400 (4)
C7A—H7AA0.9500C7B—H7BA0.9500
C8A—C9A1.451 (3)C8B—C9B1.440 (4)
C10A—C11A1.404 (4)C10B—C11B1.400 (4)
C10A—H10A0.9500C10B—H10B0.9500
C11A—C12A1.364 (4)C11B—C12B1.367 (4)
C11A—H11A0.9500C11B—H11B0.9500
C12A—C13A1.421 (4)C12B—C13B1.410 (4)
C12A—H12A0.9500C12B—H12B0.9500
C13A—C14A1.408 (4)C13B—C14B1.417 (4)
C13A—C18A1.412 (4)C13B—C18B1.421 (3)
C14A—C15A1.370 (4)C14B—C15B1.365 (4)
C14A—H14A0.9500C14B—H14B0.9500
C15A—C16A1.403 (4)C15B—C16B1.402 (4)
C15A—H15A0.9500C15B—H15B0.9500
C16A—C17A1.398 (4)C16B—C17B1.405 (3)
C16A—H16A0.9500C16B—H16B0.9500
C17A—C18A1.438 (3)C17B—C18B1.437 (4)
C19A—C20A1.534 (4)C19B—C21B1.533 (4)
C19A—C21A1.541 (4)C19B—C20B1.538 (4)
C19A—H19A1.0000C19B—H19B1.0000
C20A—H20A0.9800C20B—H20D0.9800
C20A—H20B0.9800C20B—H20E0.9800
C20A—H20C0.9800C20B—H20F0.9800
C21A—H21A0.9800C21B—H21D0.9800
C21A—H21B0.9800C21B—H21E0.9800
C21A—H21C0.9800C21B—H21F0.9800
C22A—C24A1.522 (4)C22B—C23B1.533 (4)
C22A—C23A1.529 (4)C22B—C24B1.539 (4)
C22A—H22A1.0000C22B—H22B1.0000
C23A—H23A0.9800C23B—H23D0.9800
C23A—H23B0.9800C23B—H23E0.9800
C23A—H23C0.9800C23B—H23F0.9800
C24A—H24A0.9800C24B—H24D0.9800
C24A—H24B0.9800C24B—H24E0.9800
C24A—H24C0.9800C24B—H24F0.9800
C25A—C27A1.536 (4)C25B—C27B1.538 (4)
C25A—C26A1.543 (4)C25B—C26B1.535 (4)
C25A—H25A1.0000C25B—H25B1.0000
C26A—H26A0.9800C26B—H26D0.9800
C26A—H26B0.9800C26B—H26E0.9800
C26A—H26C0.9800C26B—H26F0.9800
C27A—H27A0.9800C27B—H27D0.9800
C27A—H27B0.9800C27B—H27E0.9800
C27A—H27C0.9800C27B—H27F0.9800
C28A—C29A1.533 (4)C28B—C29B1.532 (4)
C28A—C30A1.534 (4)C28B—C30B1.536 (4)
C28A—H28A1.0000C28B—H28B1.0000
C29A—H29A0.9800C29B—H29D0.9800
C29A—H29B0.9800C29B—H29E0.9800
C29A—H29C0.9800C29B—H29F0.9800
C30A—H30A0.9800C30B—H30D0.9800
C30A—H30B0.9800C30B—H30E0.9800
C30A—H30C0.9800C30B—H30F0.9800
C31A—C32A1.538 (4)C31B—C32B1.527 (4)
C31A—C33A1.544 (4)C31B—C33B1.532 (4)
C31A—H31A1.0000C31B—H31B1.0000
C32A—H32A0.9800C32B—H32D0.9800
C32A—H32B0.9800C32B—H32E0.9800
C32A—H32C0.9800C32B—H32F0.9800
C33A—H33A0.9800C33B—H33D0.9800
C33A—H33B0.9800C33B—H33E0.9800
C33A—H33C0.9800C33B—H33F0.9800
C34A—C36A1.532 (4)C34B—C36B1.531 (4)
C34A—C35A1.535 (4)C34B—C35B1.536 (4)
C34A—H34A1.0000C34B—H34B1.0000
C35A—H35A0.9800C35B—H35D0.9800
C35A—H35B0.9800C35B—H35E0.9800
C35A—H35C0.9800C35B—H35F0.9800
C36A—H36A0.9800C36B—H36D0.9800
C36A—H36B0.9800C36B—H36E0.9800
C36A—H36C0.9800C36B—H36F0.9800
N4A—Ni1A—N2A148.45 (9)N4B—Ni1B—N2B148.84 (9)
N4A—Ni1A—N1A122.96 (8)N4B—Ni1B—N3B84.27 (9)
N2A—Ni1A—N1A84.10 (8)N2B—Ni1B—N3B112.36 (9)
N4A—Ni1A—N3A84.62 (9)N4B—Ni1B—N1B118.98 (9)
N2A—Ni1A—N3A109.19 (8)N2B—Ni1B—N1B83.97 (8)
N1A—Ni1A—N3A98.12 (9)N3B—Ni1B—N1B103.14 (8)
N2A—Si1A—C22A116.87 (11)N2B—Si1B—C25B104.23 (11)
N2A—Si1A—C19A111.91 (11)N2B—Si1B—C22B108.52 (11)
C22A—Si1A—C19A105.25 (11)C25B—Si1B—C22B111.75 (13)
N2A—Si1A—C25A104.61 (10)N2B—Si1B—C19B112.00 (12)
C22A—Si1A—C25A106.44 (12)C25B—Si1B—C19B111.95 (12)
C19A—Si1A—C25A111.76 (12)C22B—Si1B—C19B108.35 (13)
N4A—Si2A—C28A109.15 (10)N4B—Si2B—C34B112.65 (11)
N4A—Si2A—C31A111.73 (11)N4B—Si2B—C31B114.47 (11)
C28A—Si2A—C31A108.86 (12)C34B—Si2B—C31B106.42 (12)
N4A—Si2A—C34A110.77 (11)N4B—Si2B—C28B103.96 (11)
C28A—Si2A—C34A109.65 (12)C34B—Si2B—C28B112.80 (12)
C31A—Si2A—C34A106.62 (12)C31B—Si2B—C28B106.53 (12)
C1A—N1A—C9A119.8 (2)C1B—N1B—C9B119.4 (2)
C1A—N1A—Ni1A128.39 (18)C1B—N1B—Ni1B129.09 (18)
C9A—N1A—Ni1A111.79 (16)C9B—N1B—Ni1B111.53 (16)
C8A—N2A—Si1A125.42 (17)C8B—N2B—Si1B124.02 (17)
C8A—N2A—Ni1A111.27 (16)C8B—N2B—Ni1B111.78 (16)
Si1A—N2A—Ni1A122.92 (11)Si1B—N2B—Ni1B124.11 (11)
C10A—N3A—C18A119.9 (2)C10B—N3B—C18B119.7 (2)
C10A—N3A—Ni1A128.79 (19)C10B—N3B—Ni1B128.84 (18)
C18A—N3A—Ni1A110.72 (16)C18B—N3B—Ni1B111.30 (16)
C17A—N4A—Si2A120.87 (16)C17B—N4B—Si2B125.04 (17)
C17A—N4A—Ni1A110.75 (15)C17B—N4B—Ni1B111.40 (16)
Si2A—N4A—Ni1A128.38 (12)Si2B—N4B—Ni1B123.53 (11)
N1A—C1A—C2A122.4 (3)N1B—C1B—C2B122.9 (3)
N1A—C1A—H1AA118.8N1B—C1B—H1BA118.6
C2A—C1A—H1AA118.8C2B—C1B—H1BA118.6
C3A—C2A—C1A118.5 (2)C3B—C2B—C1B118.8 (3)
C3A—C2A—H2AA120.7C3B—C2B—H2BA120.6
C1A—C2A—H2AA120.7C1B—C2B—H2BA120.6
C2A—C3A—C4A120.9 (3)C2B—C3B—C4B120.4 (2)
C2A—C3A—H3AA119.6C2B—C3B—H3BA119.8
C4A—C3A—H3AA119.6C4B—C3B—H3BA119.8
C3A—C4A—C9A117.1 (2)C3B—C4B—C5B124.2 (2)
C3A—C4A—C5A124.1 (2)C3B—C4B—C9B117.0 (2)
C9A—C4A—C5A118.8 (2)C5B—C4B—C9B118.8 (2)
C6A—C5A—C4A118.7 (2)C6B—C5B—C4B118.8 (2)
C6A—C5A—H5AA120.6C6B—C5B—H5BA120.6
C4A—C5A—H5AA120.6C4B—C5B—H5BA120.6
C5A—C6A—C7A122.3 (2)C5B—C6B—C7B122.4 (2)
C5A—C6A—H6AA118.9C5B—C6B—H6BA118.8
C7A—C6A—H6AA118.9C7B—C6B—H6BA118.8
C8A—C7A—C6A122.6 (2)C8B—C7B—C6B121.9 (2)
C8A—C7A—H7AA118.7C8B—C7B—H7BA119.1
C6A—C7A—H7AA118.7C6B—C7B—H7BA119.1
N2A—C8A—C7A128.3 (2)N2B—C8B—C7B128.0 (2)
N2A—C8A—C9A117.4 (2)N2B—C8B—C9B117.0 (2)
C7A—C8A—C9A114.3 (2)C7B—C8B—C9B115.0 (2)
N1A—C9A—C4A121.4 (2)N1B—C9B—C4B121.5 (2)
N1A—C9A—C8A115.3 (2)N1B—C9B—C8B115.6 (2)
C4A—C9A—C8A123.3 (2)C4B—C9B—C8B123.0 (2)
N3A—C10A—C11A122.1 (3)N3B—C10B—C11B122.5 (3)
N3A—C10A—H10A119.0N3B—C10B—H10B118.8
C11A—C10A—H10A119.0C11B—C10B—H10B118.8
C12A—C11A—C10A119.1 (2)C12B—C11B—C10B119.2 (3)
C12A—C11A—H11A120.5C12B—C11B—H11B120.4
C10A—C11A—H11A120.5C10B—C11B—H11B120.4
C11A—C12A—C13A120.6 (3)C11B—C12B—C13B120.2 (3)
C11A—C12A—H12A119.7C11B—C12B—H12B119.9
C13A—C12A—H12A119.7C13B—C12B—H12B119.9
C14A—C13A—C18A119.1 (2)C12B—C13B—C14B124.3 (2)
C14A—C13A—C12A124.2 (3)C12B—C13B—C18B117.2 (2)
C18A—C13A—C12A116.7 (2)C14B—C13B—C18B118.4 (2)
C15A—C14A—C13A118.6 (3)C15B—C14B—C13B118.5 (2)
C15A—C14A—H14A120.7C15B—C14B—H14B120.7
C13A—C14A—H14A120.7C13B—C14B—H14B120.7
C14A—C15A—C16A122.3 (3)C14B—C15B—C16B123.1 (3)
C14A—C15A—H15A118.9C14B—C15B—H15B118.4
C16A—C15A—H15A118.9C16B—C15B—H15B118.4
C17A—C16A—C15A122.2 (2)C15B—C16B—C17B121.7 (3)
C17A—C16A—H16A118.9C15B—C16B—H16B119.1
C15A—C16A—H16A118.9C17B—C16B—H16B119.1
N4A—C17A—C16A127.5 (2)N4B—C17B—C16B127.8 (2)
N4A—C17A—C18A117.7 (2)N4B—C17B—C18B117.5 (2)
C16A—C17A—C18A114.8 (2)C16B—C17B—C18B114.7 (2)
N3A—C18A—C13A121.7 (2)N3B—C18B—C13B121.2 (2)
N3A—C18A—C17A115.4 (2)N3B—C18B—C17B115.3 (2)
C13A—C18A—C17A122.9 (2)C13B—C18B—C17B123.4 (2)
C20A—C19A—C21A111.7 (2)C21B—C19B—C20B110.4 (2)
C20A—C19A—Si1A113.78 (18)C21B—C19B—Si1B113.8 (2)
C21A—C19A—Si1A112.23 (18)C20B—C19B—Si1B111.94 (19)
C20A—C19A—H19A106.2C21B—C19B—H19B106.8
C21A—C19A—H19A106.2C20B—C19B—H19B106.8
Si1A—C19A—H19A106.2Si1B—C19B—H19B106.8
C19A—C20A—H20A109.5C19B—C20B—H20D109.5
C19A—C20A—H20B109.5C19B—C20B—H20E109.5
H20A—C20A—H20B109.5H20D—C20B—H20E109.5
C19A—C20A—H20C109.5C19B—C20B—H20F109.5
H20A—C20A—H20C109.5H20D—C20B—H20F109.5
H20B—C20A—H20C109.5H20E—C20B—H20F109.5
C19A—C21A—H21A109.5C19B—C21B—H21D109.5
C19A—C21A—H21B109.5C19B—C21B—H21E109.5
H21A—C21A—H21B109.5H21D—C21B—H21E109.5
C19A—C21A—H21C109.5C19B—C21B—H21F109.5
H21A—C21A—H21C109.5H21D—C21B—H21F109.5
H21B—C21A—H21C109.5H21E—C21B—H21F109.5
C24A—C22A—C23A108.8 (2)C23B—C22B—C24B110.4 (2)
C24A—C22A—Si1A114.80 (18)C23B—C22B—Si1B112.7 (2)
C23A—C22A—Si1A117.6 (2)C24B—C22B—Si1B116.8 (2)
C24A—C22A—H22A104.8C23B—C22B—H22B105.3
C23A—C22A—H22A104.8C24B—C22B—H22B105.3
Si1A—C22A—H22A104.8Si1B—C22B—H22B105.3
C22A—C23A—H23A109.5C22B—C23B—H23D109.5
C22A—C23A—H23B109.5C22B—C23B—H23E109.5
H23A—C23A—H23B109.5H23D—C23B—H23E109.5
C22A—C23A—H23C109.5C22B—C23B—H23F109.5
H23A—C23A—H23C109.5H23D—C23B—H23F109.5
H23B—C23A—H23C109.5H23E—C23B—H23F109.5
C22A—C24A—H24A109.5C22B—C24B—H24D109.5
C22A—C24A—H24B109.5C22B—C24B—H24E109.5
H24A—C24A—H24B109.5H24D—C24B—H24E109.5
C22A—C24A—H24C109.5C22B—C24B—H24F109.5
H24A—C24A—H24C109.5H24D—C24B—H24F109.5
H24B—C24A—H24C109.5H24E—C24B—H24F109.5
C27A—C25A—C26A107.4 (2)C27B—C25B—C26B109.3 (2)
C27A—C25A—Si1A115.79 (18)C27B—C25B—Si1B116.5 (2)
C26A—C25A—Si1A115.25 (19)C26B—C25B—Si1B115.1 (2)
C27A—C25A—H25A105.8C27B—C25B—H25B104.9
C26A—C25A—H25A105.8C26B—C25B—H25B104.9
Si1A—C25A—H25A105.8Si1B—C25B—H25B104.9
C25A—C26A—H26A109.5C25B—C26B—H26D109.5
C25A—C26A—H26B109.5C25B—C26B—H26E109.5
H26A—C26A—H26B109.5H26D—C26B—H26E109.5
C25A—C26A—H26C109.5C25B—C26B—H26F109.5
H26A—C26A—H26C109.5H26D—C26B—H26F109.5
H26B—C26A—H26C109.5H26E—C26B—H26F109.5
C25A—C27A—H27A109.5C25B—C27B—H27D109.5
C25A—C27A—H27B109.5C25B—C27B—H27E109.5
H27A—C27A—H27B109.5H27D—C27B—H27E109.5
C25A—C27A—H27C109.5C25B—C27B—H27F109.5
H27A—C27A—H27C109.5H27D—C27B—H27F109.5
H27B—C27A—H27C109.5H27E—C27B—H27F109.5
C29A—C28A—C30A109.8 (2)C29B—C28B—C30B108.7 (2)
C29A—C28A—Si2A115.17 (19)C29B—C28B—Si2B115.1 (2)
C30A—C28A—Si2A112.65 (18)C30B—C28B—Si2B115.7 (2)
C29A—C28A—H28A106.2C29B—C28B—H28B105.4
C30A—C28A—H28A106.2C30B—C28B—H28B105.4
Si2A—C28A—H28A106.2Si2B—C28B—H28B105.4
C28A—C29A—H29A109.5C28B—C29B—H29D109.5
C28A—C29A—H29B109.5C28B—C29B—H29E109.5
H29A—C29A—H29B109.5H29D—C29B—H29E109.5
C28A—C29A—H29C109.5C28B—C29B—H29F109.5
H29A—C29A—H29C109.5H29D—C29B—H29F109.5
H29B—C29A—H29C109.5H29E—C29B—H29F109.5
C28A—C30A—H30A109.5C28B—C30B—H30D109.5
C28A—C30A—H30B109.5C28B—C30B—H30E109.5
H30A—C30A—H30B109.5H30D—C30B—H30E109.5
C28A—C30A—H30C109.5C28B—C30B—H30F109.5
H30A—C30A—H30C109.5H30D—C30B—H30F109.5
H30B—C30A—H30C109.5H30E—C30B—H30F109.5
C32A—C31A—C33A110.2 (2)C32B—C31B—C33B109.7 (2)
C32A—C31A—Si2A114.30 (18)C32B—C31B—Si2B111.68 (19)
C33A—C31A—Si2A114.0 (2)C33B—C31B—Si2B118.6 (2)
C32A—C31A—H31A105.9C32B—C31B—H31B105.3
C33A—C31A—H31A105.9C33B—C31B—H31B105.3
Si2A—C31A—H31A105.9Si2B—C31B—H31B105.3
C31A—C32A—H32A109.5C31B—C32B—H32D109.5
C31A—C32A—H32B109.5C31B—C32B—H32E109.5
H32A—C32A—H32B109.5H32D—C32B—H32E109.5
C31A—C32A—H32C109.5C31B—C32B—H32F109.5
H32A—C32A—H32C109.5H32D—C32B—H32F109.5
H32B—C32A—H32C109.5H32E—C32B—H32F109.5
C31A—C33A—H33A109.5C31B—C33B—H33D109.5
C31A—C33A—H33B109.5C31B—C33B—H33E109.5
H33A—C33A—H33B109.5H33D—C33B—H33E109.5
C31A—C33A—H33C109.5C31B—C33B—H33F109.5
H33A—C33A—H33C109.5H33D—C33B—H33F109.5
H33B—C33A—H33C109.5H33E—C33B—H33F109.5
C36A—C34A—C35A109.9 (2)C36B—C34B—C35B111.0 (2)
C36A—C34A—Si2A113.1 (2)C36B—C34B—Si2B112.1 (2)
C35A—C34A—Si2A113.44 (18)C35B—C34B—Si2B114.5 (2)
C36A—C34A—H34A106.6C36B—C34B—H34B106.2
C35A—C34A—H34A106.6C35B—C34B—H34B106.2
Si2A—C34A—H34A106.6Si2B—C34B—H34B106.2
C34A—C35A—H35A109.5C34B—C35B—H35D109.5
C34A—C35A—H35B109.5C34B—C35B—H35E109.5
H35A—C35A—H35B109.5H35D—C35B—H35E109.5
C34A—C35A—H35C109.5C34B—C35B—H35F109.5
H35A—C35A—H35C109.5H35D—C35B—H35F109.5
H35B—C35A—H35C109.5H35E—C35B—H35F109.5
C34A—C36A—H36A109.5C34B—C36B—H36D109.5
C34A—C36A—H36B109.5C34B—C36B—H36E109.5
H36A—C36A—H36B109.5H36D—C36B—H36E109.5
C34A—C36A—H36C109.5C34B—C36B—H36F109.5
H36A—C36A—H36C109.5H36D—C36B—H36F109.5
H36B—C36A—H36C109.5H36E—C36B—H36F109.5

Footnotes

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: JH2120).

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