PMCCPMCCPMCC

Search tips
Search criteria 

Advanced

 
Logo of actaeInternational Union of Crystallographysearchopen accessarticle submissionjournal home pagethis article
 
Acta Crystallogr Sect E Struct Rep Online. 2009 December 1; 65(Pt 12): m1611.
Published online 2009 November 21. doi:  10.1107/S1600536809048491
PMCID: PMC2971938

{2-Eth­oxy-6-[2-(piperidinium-1-yl)ethyl­imino­meth­yl]phenolato}diiodidozinc(II)

Abstract

The title Schiff base complex, [ZnI2(C16H24N2O2)], is a mononuclear zinc(II) compound. The Zn atom is four-coordinated in a distorted tetra­hedral geometry by one phenolate O atom and one imine N atom of the Schiff base ligand and by two iodide ions. In the crystal structure, mol­ecules are linked through inter­molecular N—H(...)O hydrogen bonds, forming chains running along the a axis.

Related literature

For background to the applications of Schiff bases, see: Averseng et al. (2001 [triangle]); Patra et al. (2002 [triangle]); Chen et al. (2003 [triangle]); Ruck & Jacobsen (2002 [triangle]). For the structures of related Schiff base zinc complexes, see: Wei et al. (2007 [triangle]); Zhu, Yang et al. (2009 [triangle]); Zhu, Yin, Li et al. (2009 [triangle]); Zhu, Yin, Yang et al. (2009 [triangle]).

An external file that holds a picture, illustration, etc.
Object name is e-65-m1611-scheme1.jpg

Experimental

Crystal data

  • [ZnI2(C16H24N2O2)]
  • M r = 595.54
  • Orthorhombic, An external file that holds a picture, illustration, etc.
Object name is e-65-m1611-efi1.jpg
  • a = 13.5934 (10) Å
  • b = 10.2381 (8) Å
  • c = 14.7871 (11) Å
  • V = 2057.9 (3) Å3
  • Z = 4
  • Mo Kα radiation
  • μ = 4.20 mm−1
  • T = 298 K
  • 0.18 × 0.17 × 0.17 mm

Data collection

  • Bruker SMART CCD area-detector diffractometer
  • Absorption correction: multi-scan (SADABS; Sheldrick, 1996 [triangle]) T min = 0.518, T max = 0.535
  • 11751 measured reflections
  • 4438 independent reflections
  • 3763 reflections with I > 2σ(I)
  • R int = 0.029

Refinement

  • R[F 2 > 2σ(F 2)] = 0.028
  • wR(F 2) = 0.068
  • S = 1.02
  • 4438 reflections
  • 212 parameters
  • 2 restraints
  • H atoms treated by a mixture of independent and constrained refinement
  • Δρmax = 0.58 e Å−3
  • Δρmin = −0.88 e Å−3
  • Absolute structure: Flack (1983 [triangle]), 2111 Friedel pairs
  • Flack parameter: 0.02 (2)

Data collection: SMART (Bruker, 2002 [triangle]); cell refinement: SAINT (Bruker, 2002 [triangle]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 [triangle]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 [triangle]); molecular graphics: SHELXTL (Sheldrick, 2008 [triangle]); software used to prepare material for publication: SHELXL97.

Table 1
Selected bond lengths (Å)
Table 2
Hydrogen-bond geometry (Å, °)

Supplementary Material

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536809048491/sj2684sup1.cif

Structure factors: contains datablocks I. DOI: 10.1107/S1600536809048491/sj2684Isup2.hkl

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

Acknowledgments

The author thanks Baicheng Normal College for support of this work.

supplementary crystallographic information

Comment

Schiff bases are versatile ligands for the preparation in the preparation of metal complexes (Averseng et al., 2001; Patra et al., 2002; Chen et al., 2003; Ruck & Jacobsen, 2002). In this paper, the new zinc(II)title complex with the Schiff base ligand 2-ethoxy-6-[(2-piperidin-1-ylethylimino)methyl]phenol is reported.

In the title complex, Fig. 1, the Zn atom is four-coordinated by one phenolate O and one imine N atoms of the Schiff base ligand, and by two iodide atoms, forming a tetrahedral coordination. The coordinate bond lengths (Table 1) and angles are comparable to those of similar zinc complexes (Wei et al., 2007; Zhu, Yang et al., 2009; Zhu, Yin, Li et al., 2009; Zhu, Yin, Yang et al., 2009).

In the crystal structure, molecules are linked through intermolecular N—H···O hydrogen bonds (Table 2), forming chains running along the a axis (Fig. 2).

Experimental

2-Ethoxysalicylaldehyde (1.0 mmol, 166 mg), 2-piperidin-1-ylethylamine (1.0 mmol, 128 mg), and ZnI2 (1.0 mmol, 319 mg) were mixed in a methanol solution (50 ml). The mixture was stirred at reflux for 30 min to give a colourless solution. The solution was left in air for a few days, yielding colourless block-shaped crystals.

Refinement

The H2 atom was located from a difference Fourier map and refined isotropically, with Uiso restrained to 0.08 Å2. Other H atoms were constrained to ideal geometries, with d(C–H) = 0.93–0.97 Å, and with Uiso(H) = 1.2Ueq(C), 1.5Ueq(Cmethyl).

Figures

Fig. 1.
The molecular structure of the title compound, with 30% displacement ellipsoids for non-hydrogen atoms.
Fig. 2.
The molecular packing of the title compound, viewed along the b axis. Intermolecular hydrogen bonds are shown as dashed lines.

Crystal data

[ZnI2(C16H24N2O2)]F(000) = 1144
Mr = 595.54Dx = 1.922 Mg m3
Orthorhombic, Pna21Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2c -2nCell parameters from 4921 reflections
a = 13.5934 (10) Åθ = 2.4–27.9°
b = 10.2381 (8) ŵ = 4.20 mm1
c = 14.7871 (11) ÅT = 298 K
V = 2057.9 (3) Å3Block, colourless
Z = 40.18 × 0.17 × 0.17 mm

Data collection

Bruker SMART CCD area-detector diffractometer4438 independent reflections
Radiation source: fine-focus sealed tube3763 reflections with I > 2σ(I)
graphiteRint = 0.029
ω scansθmax = 27.0°, θmin = 2.4°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)h = −16→17
Tmin = 0.518, Tmax = 0.535k = −9→13
11751 measured reflectionsl = −18→18

Refinement

Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.028H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.068w = 1/[σ2(Fo2) + (0.0339P)2] where P = (Fo2 + 2Fc2)/3
S = 1.02(Δ/σ)max = 0.001
4438 reflectionsΔρmax = 0.58 e Å3
212 parametersΔρmin = −0.88 e Å3
2 restraintsAbsolute structure: Flack (1983), 2111 Friedel pairs
Primary atom site location: structure-invariant direct methodsFlack parameter: 0.02 (2)

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
Zn1−0.02523 (3)0.78151 (4)0.73753 (7)0.03660 (10)
I1−0.07635 (3)0.89935 (4)0.881593 (19)0.05811 (13)
I2−0.07707 (3)0.89530 (5)0.590518 (18)0.06408 (15)
N10.1209 (2)0.7453 (3)0.7350 (4)0.0383 (6)
N20.2829 (3)0.9941 (4)0.8503 (2)0.0380 (8)
O1−0.06258 (15)0.5977 (2)0.7346 (4)0.0386 (5)
O2−0.1483 (3)0.3910 (3)0.6564 (2)0.0567 (9)
C10.1005 (3)0.5138 (4)0.7039 (3)0.0405 (10)
C2−0.0040 (3)0.5075 (4)0.7033 (3)0.0373 (9)
C3−0.0463 (4)0.3937 (4)0.6658 (4)0.0491 (11)
C40.0100 (5)0.2871 (5)0.6416 (4)0.0660 (15)
H4−0.02020.21120.62100.079*
C50.1109 (5)0.2932 (5)0.6478 (4)0.0677 (16)
H50.14850.22070.63220.081*
C60.1556 (4)0.4029 (5)0.6762 (3)0.0549 (13)
H60.22400.40630.67780.066*
C70.1560 (3)0.6312 (4)0.7217 (3)0.0415 (12)
H70.22410.62290.72380.050*
C80.1907 (3)0.8546 (4)0.7423 (5)0.0457 (9)
H8A0.16120.93290.71740.055*
H8B0.24950.83490.70780.055*
C90.2174 (3)0.8774 (4)0.8385 (3)0.0417 (10)
H9A0.25060.80070.86190.050*
H9B0.15780.89010.87350.050*
C100.2269 (4)1.1197 (4)0.8443 (4)0.0549 (12)
H10A0.17501.11990.88930.066*
H10B0.19651.12650.78510.066*
C110.2937 (5)1.2366 (5)0.8595 (4)0.0739 (17)
H11A0.34121.24180.81060.089*
H11B0.25471.31590.85860.089*
C120.3470 (5)1.2274 (6)0.9474 (4)0.0751 (17)
H12A0.30021.23200.99680.090*
H12B0.39211.30030.95320.090*
C130.4043 (5)1.0991 (6)0.9531 (5)0.0674 (16)
H13A0.45531.09840.90730.081*
H13B0.43571.09271.01180.081*
C140.3384 (4)0.9850 (5)0.9397 (3)0.0504 (12)
H14A0.29160.98070.98910.060*
H14B0.37720.90550.94050.060*
C15−0.1804 (5)0.4628 (8)0.5756 (4)0.083 (2)
H15A−0.25140.47250.57710.099*
H15B−0.15160.54950.57640.099*
C16−0.1523 (7)0.3969 (10)0.4922 (6)0.126 (4)
H16A−0.08190.39110.48890.189*
H16B−0.17640.44560.44130.189*
H16C−0.18000.31070.49140.189*
H20.333 (3)0.987 (6)0.811 (3)0.080*

Atomic displacement parameters (Å2)

U11U22U33U12U13U23
Zn10.02854 (19)0.0357 (2)0.0455 (2)−0.00197 (15)0.0007 (4)−0.0052 (4)
I10.0524 (3)0.0591 (2)0.0628 (3)−0.0002 (2)0.0065 (2)−0.0281 (2)
I20.0628 (4)0.0766 (3)0.0528 (3)0.0076 (2)0.0024 (2)0.0169 (2)
N10.0261 (13)0.0474 (16)0.0414 (15)−0.0071 (11)−0.003 (3)0.002 (3)
N20.0350 (19)0.0452 (19)0.0338 (18)−0.0077 (16)−0.0043 (15)−0.0033 (15)
O10.0316 (12)0.0381 (13)0.0460 (13)−0.0049 (9)0.007 (2)−0.005 (2)
O20.059 (2)0.053 (2)0.058 (2)−0.0245 (15)0.0061 (18)−0.0095 (16)
C10.040 (2)0.045 (2)0.037 (2)0.0128 (19)−0.0005 (16)0.0015 (17)
C20.042 (2)0.034 (2)0.036 (2)0.0008 (18)0.0030 (16)0.0012 (15)
C30.062 (3)0.039 (3)0.046 (3)−0.006 (2)0.007 (2)−0.004 (2)
C40.096 (5)0.038 (3)0.064 (4)−0.002 (3)0.009 (3)−0.006 (2)
C50.092 (5)0.045 (3)0.067 (4)0.028 (3)0.006 (3)−0.009 (3)
C60.058 (3)0.060 (3)0.047 (3)0.025 (2)0.002 (2)0.000 (2)
C70.0279 (18)0.061 (2)0.036 (3)0.0033 (16)−0.0049 (18)−0.004 (2)
C80.0343 (18)0.055 (2)0.048 (2)−0.0151 (16)−0.001 (3)0.001 (4)
C90.037 (2)0.044 (2)0.045 (2)−0.0062 (19)−0.0032 (19)0.0025 (18)
C100.067 (3)0.049 (3)0.049 (3)0.008 (2)−0.011 (3)−0.002 (2)
C110.118 (5)0.046 (3)0.058 (3)−0.005 (3)−0.015 (3)−0.002 (2)
C120.110 (5)0.059 (3)0.056 (3)−0.020 (3)−0.014 (3)−0.007 (3)
C130.058 (4)0.084 (4)0.060 (4)−0.019 (3)−0.014 (3)−0.012 (3)
C140.047 (3)0.059 (3)0.046 (3)0.002 (2)−0.017 (2)0.000 (2)
C150.050 (4)0.122 (6)0.076 (4)−0.021 (4)0.002 (3)−0.030 (4)
C160.073 (5)0.214 (12)0.091 (5)0.007 (6)−0.018 (5)−0.051 (6)

Geometric parameters (Å, °)

Zn1—O11.950 (2)C8—H8A0.9700
Zn1—N12.021 (3)C8—H8B0.9700
Zn1—I12.5448 (9)C9—H9A0.9700
Zn1—I22.5651 (9)C9—H9B0.9700
N1—C71.277 (5)C10—C111.520 (7)
N1—C81.471 (4)C10—H10A0.9700
N2—C101.498 (6)C10—H10B0.9700
N2—C91.500 (5)C11—C121.491 (8)
N2—C141.524 (5)C11—H11A0.9700
N2—H20.90 (4)C11—H11B0.9700
O1—C21.304 (5)C12—C131.529 (8)
O2—C31.394 (6)C12—H12A0.9700
O2—C151.470 (8)C12—H12B0.9700
C1—C61.421 (6)C13—C141.485 (7)
C1—C21.421 (6)C13—H13A0.9700
C1—C71.444 (6)C13—H13B0.9700
C2—C31.412 (6)C14—H14A0.9700
C3—C41.381 (7)C14—H14B0.9700
C4—C51.376 (9)C15—C161.457 (9)
C4—H40.9300C15—H15A0.9700
C5—C61.345 (7)C15—H15B0.9700
C5—H50.9300C16—H16A0.9600
C6—H60.9300C16—H16B0.9600
C7—H70.9300C16—H16C0.9600
C8—C91.486 (8)
O1—Zn1—N194.50 (10)N2—C9—H9A109.1
O1—Zn1—I1113.89 (16)C8—C9—H9B109.1
N1—Zn1—I1111.78 (16)N2—C9—H9B109.1
O1—Zn1—I2110.37 (17)H9A—C9—H9B107.8
N1—Zn1—I2109.73 (17)N2—C10—C11111.3 (4)
I1—Zn1—I2114.776 (17)N2—C10—H10A109.4
C7—N1—C8117.8 (3)C11—C10—H10A109.4
C7—N1—Zn1122.5 (3)N2—C10—H10B109.4
C8—N1—Zn1119.5 (2)C11—C10—H10B109.4
C10—N2—C9112.0 (3)H10A—C10—H10B108.0
C10—N2—C14110.8 (4)C12—C11—C10111.7 (5)
C9—N2—C14110.3 (3)C12—C11—H11A109.3
C10—N2—H2115 (4)C10—C11—H11A109.3
C9—N2—H2108 (4)C12—C11—H11B109.3
C14—N2—H2101 (4)C10—C11—H11B109.3
C2—O1—Zn1122.1 (2)H11A—C11—H11B107.9
C3—O2—C15111.5 (4)C11—C12—C13110.5 (5)
C6—C1—C2119.3 (4)C11—C12—H12A109.6
C6—C1—C7116.2 (4)C13—C12—H12A109.6
C2—C1—C7124.1 (4)C11—C12—H12B109.6
O1—C2—C3118.4 (4)C13—C12—H12B109.6
O1—C2—C1125.1 (4)H12A—C12—H12B108.1
C3—C2—C1116.5 (4)C14—C13—C12111.2 (5)
C4—C3—O2120.7 (4)C14—C13—H13A109.4
C4—C3—C2121.9 (5)C12—C13—H13A109.4
O2—C3—C2117.4 (4)C14—C13—H13B109.4
C5—C4—C3120.0 (5)C12—C13—H13B109.4
C5—C4—H4120.0H13A—C13—H13B108.0
C3—C4—H4120.0C13—C14—N2111.5 (4)
C6—C5—C4120.6 (5)C13—C14—H14A109.3
C6—C5—H5119.7N2—C14—H14A109.3
C4—C5—H5119.7C13—C14—H14B109.3
C5—C6—C1121.3 (5)N2—C14—H14B109.3
C5—C6—H6119.4H14A—C14—H14B108.0
C1—C6—H6119.4C16—C15—O2112.3 (7)
N1—C7—C1126.5 (4)C16—C15—H15A109.1
N1—C7—H7116.8O2—C15—H15A109.1
C1—C7—H7116.8C16—C15—H15B109.1
N1—C8—C9110.4 (5)O2—C15—H15B109.1
N1—C8—H8A109.6H15A—C15—H15B107.9
C9—C8—H8A109.6C15—C16—H16A109.5
N1—C8—H8B109.6C15—C16—H16B109.5
C9—C8—H8B109.6H16A—C16—H16B109.5
H8A—C8—H8B108.1C15—C16—H16C109.5
C8—C9—N2112.5 (3)H16A—C16—H16C109.5
C8—C9—H9A109.1H16B—C16—H16C109.5

Hydrogen-bond geometry (Å, °)

D—H···AD—HH···AD···AD—H···A
N2—H2···O2i0.90 (4)2.61 (5)3.237 (5)127 (4)
N2—H2···O1i0.90 (4)2.01 (5)2.867 (5)159 (5)

Symmetry codes: (i) x+1/2, −y+3/2, z.

Footnotes

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SJ2684).

References

  • Averseng, F., Lacroix, P. G., Malfant, I., Périssé, N. & Lepetit, C. (2001). Inorg. Chem. 40, 3797-3804. [PubMed]
  • Bruker (2002). SAINT and SMART. Bruker AXS Inc., Madison, Wisconsin, USA.
  • Chen, C., Huang, D., Zhang, X., Chen, F., Zhu, H., Liu, Q., Zhang, C., Liao, D., Li, L. & Sun, L. (2003). Inorg. Chem. 42, 3540–3548. [PubMed]
  • Flack, H. D. (1983). Acta Cryst. A39, 876–881.
  • Patra, A. K., Olmstead, M. M. & Mascharak, P. K. (2002). Inorg. Chem. 41, 5403–5409. [PubMed]
  • Ruck, R. T. & Jacobsen, E. N. (2002). J. Am. Chem. Soc. 124, 2882–2883. [PubMed]
  • Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.
  • Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. [PubMed]
  • Wei, Y.-J., Wang, F.-W. & Zhu, Q.-Y. (2007). Acta Cryst. E63, m654–m655.
  • Zhu, X.-W., Yang, X.-Z., Zhang, C.-X., Li, G.-S. & Yin, Z.-G. (2009). Acta Cryst. E65, m1332–m1333. [PMC free article] [PubMed]
  • Zhu, X.-W., Yin, Z.-G., Li, G.-S., Yang, X.-Z. & Zhang, C.-X. (2009). Acta Cryst. E65, m1226–m1227. [PMC free article] [PubMed]
  • Zhu, X.-W., Yin, Z.-G., Yang, X.-Z., Li, G.-S. & Zhang, C.-X. (2009). Acta Cryst. E65, m1293–m1294. [PMC free article] [PubMed]

Articles from Acta Crystallographica Section E: Structure Reports Online are provided here courtesy of International Union of Crystallography