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1.  7′-[4-(Trifluoro­meth­yl)phen­yl]-5′,6′,7′,7a’-tetra­hydrodispiro­[indan-2,5′-pyrrolo­[1,2-c][1,3]thia­zole-6′,2′′-indan]-1,3,1′′-trione 
In the title compound, C29H20F3NO3S, the thia­zolidine ringadopts a half-chair conformation. The pyrrolidine and two five-membered carbocyclic rings are in envelope conformations with the spiro C atoms at the flaps. The trifluoro­methyl-substituted benzene ring forms dihedral angles of 62.37 (14) and 87.40 (14)° with the benzene rings of the dihydro-1H-indene units. The two benzene rings form a dihedral angle of 36.94 (15)°. The mol­ecular structure is stabilized by intra­molecular C—H⋯O hydrogen bonds, which generate S(6) ring motifs. In the crystal, mol­ecules are linked into inversion dimers by pairs of inter­molecular C—H⋯O hydrogen bonds, generating R 2 2(10) ring motifs.
doi:10.1107/S1600536811047118
PMCID: PMC3238947  PMID: 22199796
2.  7′-Phenyl-5′,6′,7′,7a′-tetra­hydro­dipiro[indan-2,5′-pyrrolo­[1,2-c][1,3]thia­zole-6′,2′′-indan]-1,3,1′′-trione 
The asymmetric unit of the title compound, C28H21NO3S, contains two mol­ecules with similar geometries. The thia­zolidine rings adopt half-chair conformations while the pyrrolidine and the diketo-substituted five-membered carbocyclic rings are in envelope conformations with the spiro C atoms at the flaps. In one mol­ecule, the phenyl ring forms dihedral angles of 57.76 (12) and 71.79 (12)° with the fused benzene rings and the fused benzene rings form a dihedral angle of 57.75 (13)°. The corresponding dihedral angles in the other mol­ecule are 60.04 (12), 72.93 (12) and 54.51 (13)°. The mol­ecular structure is stabilized by intra­molecular C—H⋯O hydrogen bonds, which generate S(6) ring motifs. In the crystal, mol­ecules are linked via C—H⋯O and C—H⋯N hydrogen bonds into layers lying parallel to the ab plane.
doi:10.1107/S1600536811046174
PMCID: PMC3238881  PMID: 22199734
3.  4′-(3-Bromo­phen­yl)-1′-methyl­dispiro­[indan-2,2′-pyrrolidine-3′,2′′-indan]-1,3,1′′-trione 
In the title compound, C27H20BrNO3, two intra­molecular C—H⋯O hydrogen bonds both form S(6) rings. The pyrrolidine ring adopts a twisted conformation about the C—C bond bearing the indane ring systems. The other two five-membered rings within the indane systems are in shallow envelope conformations, with the spiro C atoms as the flap atoms. The mean plane of the pyrrolidine ring [maximum deviation = 0.275 (1) Å] makes dihedral angles of 65.25 (7), 78.33 (6) and 75.25 (6)° with the bromo-substituted benzene ring and the mean planes of the mono- and dioxo-substituted indane rings, respectively. In the crystal, mol­ecules are linked by C—H⋯O and C—H⋯N hydrogen bonds into a three-dimensional network. In addition, C—H⋯π inter­actions are observed.
doi:10.1107/S1600536812037993
PMCID: PMC3470256  PMID: 23125700
4.  7′-(2,5-Dimeth­oxy­phen­yl)-1′,3′,5′,6′,7′,7a’-hexa­hydro­dispiro­[indan-2,5′-pyrrolo­[1,2-c][1,3]thia­zole-6′,2′′-indan]-1,3,1′′-trione 
In the title compound, C30H25NO5S, all the five-membered rings are in envelope conformations with the spiro and methylene C atoms as the flap atoms. Intra­molecular C—H⋯O inter­actions stabilize the mol­ecular structure and form S(6) and S(7) ring motifs. The mean plane through the hexa­hydro­pyrrolo­[1,2-c]thia­zole ring [r.m.s deviation of 0.0393 (1) Å] makes dihedral angles of 60.92 (5), 88.33 (4) and 84.12 (4)° with the terminal benzene ring and the mean planes of the mono and di-oxo substituted indan rings, respectively. Mol­ecules are linked by inter­molecular C—H⋯O inter­actions into a three-dimensional network. In addition, C—H⋯π and π–π inter­actions [centroid-to-centroid distance = 3.4084 (8) Å] further stabilize the crystal structure.
doi:10.1107/S1600536812003169
PMCID: PMC3297291  PMID: 22412481
5.  7′-Phenyl-1′,3′,5′,6′,7′,7a’-hexa­hydro­dipiro[acenaphthyl­ene-1,5′-pyrrolo­[1,2-c]thia­zole-6′,2′′-indane]-2,1′′(1H)-dione 
In the title compound, C31H23NO2S, the pyrrolidine ring adopts an envelope conformation (with the spiro C atom as the flap), while the thia­zolidine ring and the two cyclo­pentane rings adopt twisted conformations. The mean plane through the hexa­hydro­pyrrolo­[1,2-c]thia­zole ring [r.m.s deviation = 0.400 (1) Å] forms dihedral angles of 76.83 (4), 80.70 (5) and 79.00 (4)° with the benzene ring and the mean planes of the dihydro­acenaphthyl­ene and the dihydro­indene rings, respectively. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds into sheets lying parallel to the bc plane. One of the ketone O atoms accepts three such bonds. Weak C—H⋯π inter­actions are also observed.
doi:10.1107/S1600536812013293
PMCID: PMC3344191  PMID: 22606194
6.  4′-(4-Fluoro­phen­yl)-1′-methyl­dispiro­[indane-2,2′-pyrrolidine-3′,2′′-indane]-1,3,1′′-trione methanol hemisolvate 
The asymmetric unit of the title compound, C29H24FNO5·0.5CH3OH, contains two independent mol­ecules and a one methanol solvent mol­ecule. The methanol mol­ecule is O—H⋯O hydrogen bonded to one of the independent mol­ecules. The pyrrolidine rings in both mol­ecules adopt half-chair conformations, while the cyclo­pentane rings within the indane groups are in flattened envelope conformations, with the spiro C atoms forming the flaps. The benzene rings of the indane ring systems form a dihedral angle of 35.06 (7)° in one independent mol­ecule and 31.16 (8)° in the other. The fluoro-substituted benzene ring forms dihedral angles of 65.35 (6) and 85.87 (7)° with the indane group benzene rings in one mol­ecule, and 72.78 (8) and 77.27 (8)° in the other. In each mol­ecule, a weak intra­molecular C—H⋯O hydrogen bond forms an S(6) ring motif. In the crystal, weak C—H⋯O, C—H⋯N and C—H⋯F hydrogen bonds link the mol­ecules into a three-dimensional network.
doi:10.1107/S1600536813009987
PMCID: PMC3648276  PMID: 23723896
7.  4′-(4-Bromo­phen­yl)-1′-methyl­dispiro­[acenaphthyl­ene-1,2′-pyrrolidine-3′,2′′-indane]-2,1′′(1H)-dione 
In the title compound, C30H22BrNO2, the cyclo­pentane ring of the dihydro­acenaphthyl­ene group and the pyrrolidine ring are both in envelope conformations with the spiro C atom and N atom, respectively, as the flap atom. The cyclo­pentane ring of the indane group adopts a half-chair conformation. A weak intra­molecular C—H⋯O hydrogen bond forms an S(8) ring motif. The naphthalene ring system of the dihydro­acenaphthyl­ene group forms dihedral angles of 41.76 (6) and 42.17 (6)° with the benzene ring of the bromo­phenyl group and the benzene ring of the indane group, respectively. The dihedral angle between the two benzene rings is 83.92 (7)°. In the crystal, mol­ecules are linked by weak C—H⋯O and C—H⋯N hydrogen bonds into a two-dimensional network parallel to the ac plane. Weak C—H⋯π inter­actions are also observed.
doi:10.1107/S1600536812014213
PMCID: PMC3344476  PMID: 22590238
8.  4′-(4-Bromo­phen­yl)-1′-methyl­dispiro­[indan-2,2′-pyrrolidine-3′,2′′-indan]-1,3,1′′-trione 
In the title compound, C27H20BrNO3, the pyrrolidine ring adopts a half-chair conformation, while the other five-membered rings adopt flattened envelope conformations with the spiro C atoms as the flap atoms. An intra­molecular C—H⋯O hydrogen bond occurs, generating an S(6) ring. In the crystal, mol­ecules are connected via weak C—H⋯O hydrogen bonds, forming chains along the c axis.
doi:10.1107/S1600536811044515
PMCID: PMC3247508  PMID: 22220126
9.  (6′R*,7′R*)-7′-(1,3,-Diphenyl-1H-pyrazol-4-yl)-1,2,5′,6′,7′,7a’,3′′,4′′-octa­hydro-1′H,2′′H-dispiro­[acenaphthyl­ene-1,5′-pyrrolo­[1,2-c][1,3]thia­zole-6′,3′′-[1]benzopyran]-2,4′′-dione 
In the title compound, C40H29N3O3S, the pyran ring adopts a sofa conformation, the thia­zolidine ring adopts a twisted conformation and the pyrrolidine ring adopts an envelope conformation with the N atom as the flap. The pyrazole ring is essentially planar [maximum deviation = 0.002 (2) Å] and forms dihedral angles of 4.8 (1) and 39.0 (1)°, respectively, with the benzene rings attached to the N and C atoms. The acenapthylene ring system is approximately planar [maximum deviation = 0.058 (2) Å] and forms dihedral angles of 85.9 (1) and 48.5 (1)°, respectively, with the pyrollothia­zole and chromene ring systems. The mol­ecular conformation is stabilized by three weak intra­molecular C—H⋯O hydrogen bonds, which generate one S(8) and two S(6) ring motifs. In the crystal, pairs of C—H⋯O hydrogen bonds link centrosymmetrically related mol­ecules into dimers, generating R 2 2(14) ring motifs. The crystal packing also features pairs of C—H⋯π inter­actions, which link the dimers into a supra­molecular chain along the b axis.
doi:10.1107/S1600536813005825
PMCID: PMC3629526  PMID: 23634044
10.  4′-(4-Chlorophenyl)-1′-methyldispiro[indan-2,2′-pyrrolidine-3′,2′′-indan]-1,3,1′′-trione 
In the title compound, C27H20ClNO3, the two cyclo­pentane rings adopt envelope conformations. The pyrrolidine ring also adopts an envelope conformation (with the spiro C atom as the flap) and its least-squares plane (fitted to five atoms) makes dihedral angles of 66.50 (9), 77.36 (8) and 73.76 (8)° with the chloro­benzene ring and the two 2,3-dihydro-1H-indene ring systems, respectively. The mol­ecular conformation is stabilized by an intra­molecular C—H⋯O hydrogen bond, which generates an S(6) ring motif. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds into chains running parallel to the [001] direction.
doi:10.1107/S1600536811033642
PMCID: PMC3200810  PMID: 22064509
11.  4′-[5-(4-Fluoro­phen­yl)pyridin-3-yl]-1′-methyl­dispiro­[indan-2,2′-pyrrolidine-3′,2′′-indan]-1,3,1′′-trione 
In the title compound, C32H23FN2O3, the pyrrolidine ring adopts an envelope conformation. The monoketo- and diketo-substituted five-membered rings are in envelope and half-chair conformations, respectively. The mol­ecular structure is stabilized by an intra­molecular C—H⋯O hydrogen bond, which generates an S(6) ring motif. In the crystal, mol­ecules are linked via inter­molecular C—H⋯N and C—H⋯O hydrogen bonds into a three-dimensional network. The crystal structure is further consolidated by C—H⋯π inter­actions.
doi:10.1107/S1600536811032946
PMCID: PMC3200886  PMID: 22058982
12.  1′-Methyl-4′-[4-(trifluoro­meth­yl)phen­yl]dispiro­[indan-2,2′-pyrrolidine-3′,2′′-indan]-1,3,1′′-trione 
In the title compound, C28H20F3NO3, the pyrrolidine ring adopts a half-chair conformation. The other five-membered rings adopt envelope conformations with the spiro and methylene C atoms as the flap atoms. In the crystal, mol­ecules are connected via weak C—H⋯O hydrogen bonds, forming sheets parallel to the bc plane.
doi:10.1107/S1600536811044527
PMCID: PMC3247509  PMID: 22220127
13.  1′-Methyl-4′-[4-(trifluoro­meth­yl)phen­yl]dispiro­[acenaphthyl­ene-1,2′-pyrrolidine-3′,2′′-indane]-2,1′′(1H)-dione 
In the title compound, C31H22F3NO2, the pyrrolidine and cyclo­pentane rings within the dihydro­indene ring system are in envelope conformations, with the N atom and the spiro-C atom at the flap, respectively. An intra­molecular C—H⋯O hydrogen bond forms an S(8) ring motif. The mean plane through the pyrrolidine ring [r.m.s. deviation = 0.179 (2) Å] makes dihedral angles of 86.30 (13), 88.99 (10) and 79.69 (11)° with the benzene ring, the dihydro­acenaphthyl­ene ring and the mean plane of the indane system, respectively. In the crystal, mol­ecules are linked by C—H⋯O and C—H⋯N hydrogen bonds into a two-dimensional network parallel to the ac plane. C—H⋯π inter­actions further stabilize the crystal structure.
doi:10.1107/S1600536812013645
PMCID: PMC3344443  PMID: 22590205
14.  (1S,3′S,3a′R,6′S)-6′-(2-Chloro­phen­yl)-3′-[(2R,3S)-1-(4-meth­oxy­phen­yl)-4-oxo-3-phenyl­azetidin-2-yl]-2-oxo-3′,3′a,4′,6′-tetra­hydro-2H,2′H-spiro­[ace­naphthyl­ene-1,1′-pyrrolo­[1,2-c][1,3]thia­zole]-2′,2′-dicarbo­nitrile 
The mol­ecular conformation of the title compound, C41H29ClN4O3S, is stabilized by intra­molecular C—H⋯O and C—H⋯Cl hydrogen bonds. The thia­zole ring adopts an envelope conformation with the N atom as the flap, while the pyrrolidine ring has a twisted conformation on the N—C bond involving the spiro C atom. The β la­ctam ring makes dihedral angles of 39.74 (15) and 16.21 (16)° with the mean planes of the thia­zole and pyrrolidine rings, respectively. The thia­zole ring mean plane makes dihedral angles of 23.79 (13) and 70.88 (13) ° with the pyrrolidine and cyclo­pentane rings, respectively, while the pyrrolidine ring makes a dihedral angle of 85.63 (13)° with the cyclo­pentane ring. The O atom attached to the β la­ctam ring deviates from its mean plane by 0.040 (2) Å, while the O atom attached to the cyclo­pentane ring deviates from its mean plane by 0.132 (2) Å. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds, forming chains along [010], and C—H⋯π and π-π inter­actions [centroid-centroid distance = 3.6928 (17) Å].
doi:10.1107/S1600536813009276
PMCID: PMC3648279  PMID: 23723899
15.  1-(2-Hy­droxy­eth­yl)-1′-methyl-4′-(naph­thal­en-1-yl)-1′′,2′′,3′′,4′′-tetra­hydro­dispiro­[indoline-3,2′-pyrrolidine-3′,2′′-naphthalene]-2,1′′-dione 
In the title compound, C33H30N2O3, the pyrrolidine ring adopts an envelope conformation in which the H atom attached the an ortho-C atom deviates from the plane, whereas the cyclo­hexa­none ring in the tetra­hydro­naphthalene fused-ring system adopts a sofa conformation. The oxindoline ring system is almost perpendicular with respect to the mean plane of the pyrrolidine ring, with a dihedral angle of 89.0 (1)°. Five intra­molecular C—H⋯O close contacts are observed. In the crystal, mol­ecules associate via O—H⋯O hydrogen bonds, forming R 2 2(14) dimers. In addition, there are weak C—H⋯π inter­actions.
doi:10.1107/S1600536812006617
PMCID: PMC3297867  PMID: 22412670
16.  2-[2-(2-Bromo­phen­yl)-2-oxoeth­yl]-1λ6,2-benzothia­zole-1,1,3-trione 
The asymmetric unit of the title compound, C15H10BrNO4S, contains two different conformers in which the benzisothia­zole rings are essentially planar, with r.m.s. deviations of 0.012 and 0.017 Å. The mean planes of the benzene rings form dihedral angles 70.49 (13) and 72.79 (11)° with the benzisothia­zole rings. The orientation of the Br atoms in the two conformers exhibit the most pronounced difference, with opposing orientations in the two mol­ecules. The crystal structure is stabilized by π–π inter­actions between the benzene rings of the benzisothia­zole moieties of one mol­ecule and bromo­benzene rings of the other mol­ecule, with distances between the ring centroids of 3.599 (3) and 3.620 (3) Å, respectively. The crystal packing is further consolidated by pairs of weak inter­molecular C—H⋯O hydrogen bonds, which form inversion dimers.
doi:10.1107/S1600536812022428
PMCID: PMC3379449  PMID: 22719647
17.  Crystal structure of 6-(4-chloro­phen­yl)-6a-nitro-6,6a,6b,7,9,11a-hexa­hydro­spiro[chromeno[3′,4′:3,4]pyrrolo­[1,2-c]thia­zole-11,11′-indeno­[1,2-b]quinoxaline] chloro­form monosolvate 
In the title compound, C33H23ClN4O3S·CHCl3, the thia­zole ring adopts an envelope conformation with the N atom as the flap, and the pyrrolidine ring adopts a half-chair conformation. The thia­zole ring mean plane makes a dihedral angle of 59.31 (1)° with the pyrrolidine ring mean plane, 71.67 (1)° with the chromene ring and 82.59 (1)° with the chloro­benzene ring. An intra­molecular C—H⋯N hydrogen bond occurs. In the crystal, a second C—H⋯N hydrogen bond links the main and solvent mol­ecules. The solvent chloroform molecule is disordered about two positions with an occupancy ratio of 0.508 (14):0.492 (14).
doi:10.1107/S1600536814020601
PMCID: PMC4257185  PMID: 25484701
crystal structure; thia­zole; C—H⋯N hydrogen bonding
18.  1′-Methyl-4′-(1-naphth­yl)-1′′,2′′,3′′,4′′-tetra­hydro­indane-2-spiro-2′-pyrrolidine-3′-spiro-2′′-naphthalene-1,3,1′′-trione 
In the title compound, C32H25NO3, the pyrrolidine ring adopts an envelope conformation, whereas the cyclo­hexa­none ring in the tetra­hydro­naphthalene fused-ring system adopts a half-chair conformation. The indanedione unit is oriented at an angle of 58.9 (1)° with respect to the naphthyl ring system. Three intra­molecular C—H⋯O close contacts and an intra­molecular C—H⋯π inter­action are observed. In the crystal, mol­ecules associate via C—H⋯O hydrogen bonds, forming a helical chain with a C(10) motif along the b axis.
doi:10.1107/S1600536811004880
PMCID: PMC3052033  PMID: 21522383
19.  5′′-(4-Meth­oxy­benzyl­idene)-7′-(4-meth­oxy­phen­yl)-1′′-methyl-5′,6′,7′,7a’-tetra­hydro­dispiro­[acenaphthene-1,5′-pyrrolo­[1,2-c][1,3]thia­zole-6′,3′′-piperidine]-2,4′′-dione 
In the title compound, C37H34N2O4S, the piperidine ring adopts a half-chair conformation. The thia­zole ring adopts a slightly twisted envelope conformation and the pyrrole ring adopts an envelope conformation; in each case, the C atom linking the rings is the flap atom. An intra­molecular C—H⋯O inter­action is noted. The crystal structure is stabilized by C—H⋯O and C—H⋯π inter­actions.
doi:10.1107/S1600536811045934
PMCID: PMC3238875  PMID: 22199728
20.  N-[2-(4-Bromo­phen­yl)-5-methyl-4-oxo-1,3-thia­zolidin-3-yl]pyridine-3-carboxamide 
In the title compound, C16H14BrN3O2S, the atoms of the 1,3-thia­zolidine group, except for the N and the C atoms attached to the bromo­benzene ring, are disordered over two sets of sites with occupancies of 0.605 (13) and 0.395 (13). The benzene and pyridine rings make a dihedral angle of 86.2 (2)°. In the crystal, mol­ecules are linked by inter­molecular N—H⋯N and C—H⋯O hydrogen bonds, forming a three-dimensional network. Furthermore, there is a π–π stacking inter­action [centroid–centroid distance = 3.758 (2) Å] between the pyridine and benzene rings.
doi:10.1107/S1600536811009603
PMCID: PMC3100075  PMID: 21754186
21.  5′-([1,1′-Biphen­yl]-4-yl)-1′,1′′,3′′-tri­methyl­dispiro[indane-2,2′-pyrrolidine-4′,5′′-[1,3]diazin­ane]-1,3,2′′,4′′,6′′-penta­one 
In the title compound, C30H25N3O5, the central five-membered heterocyclic ring adopts an envelope conformation, with the N atom as the flap. The dihedral angles between this central ring and the pendant indane ring system, the trione and benzene rings are 87.49 (5), 82.95 (10) and 72.42 (10)°, respectively. The dihedral angle between the rings of the biphenyl group is 45.99 (13)°. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds into [101] C(12) chains.
doi:10.1107/S1600536814013117
PMCID: PMC4120593  PMID: 25161552
22.  2-[6-(4-Bromo­phen­yl)imidazo[2,1-b][1,3]thia­zol-3-yl]-N-[8-(4-hy­droxy­phen­yl)-2-methyl-3-oxo-1-thia-4-aza­spiro­[4.5]decan-4-yl]acetamide ethanol disolvate 
In the title compound, C28H27BrN4O3S2·2C2H6O, the cyclo­hexane ring adopts a chair conformation. The imidazo[2,1-b][1,3]thia­zole ring system is essentially planar with a dihedral angle of 1.1 (2)° between the thia­zole and imidazole rings. The mean plane of this ring system makes dihedral angles of 8.11 (16) and 79.43 (17)°, respectively, with the bromo- and hy­droxy-substituted benzene rings. In the 5-methyl-1,3-thia­zolidin-4-one group, the S atom, the methyl group and the ring C atoms bonded to them are disordered over two sets of sites with refined occupancies of 0.610 (19) and 0.390 (19). The crystal structure features N—H⋯O, O—H⋯O, O—H⋯N and C—H⋯O hydrogen bonds and C—H⋯π inter­actions. Furthermore, two weak π–π stacking inter­actions [centroid–centroid distances = 3.967 (3) and 3.892 (2) Å] are also observed.
doi:10.1107/S1600536812015371
PMCID: PMC3344614  PMID: 22590376
23.  5′′-(4-Nitro­benzyl­idene)-7′-(4-nitro­phen­yl)-1′′-methyl-1′,3′,5′,6′,7′,7a′-hexa­hydro­dispiro­[ace­naphthyl­ene-1,5′-pyrrolo­[1,2-c][1,3]thia­zole-6′,3′′-piperidine]-2,4′′(1H)-dione including an unknown solvate 
The title compound, C35H28N4O6S, crystallizes with two mol­ecules in the asymmetric unit. In both mol­ecules, the piperidine ring adopts a shallow-chair conformation, the thia­zole ring adopts a twisted conformation about the Cm—N bond (m = methine) and the pyrrole ring adopts an envelope conformation with the C atom shared with the thia­zole ring as the flap. In the crystal, inversion dimers linked by pairs of C—H⋯O inter­actions generate R 2 2(34) loops for one of the asymmetric mol­ecules. Further C—H⋯O links also involving the other mol­ecule lead to a three-dimesional network. The contribution of the highly disordered solvent to the scattering was removed with SQUEEZE option of PLATON [Spek (2009 ▶). Acta Cryst. D65, 148–155]. The solvent contribution is not included in the reported mol­ecular weight and density.
doi:10.1107/S1600536813017704
PMCID: PMC3793718  PMID: 24109305
24.  6-Ferrocenoyl-7-phenyl­spiro­[hexa­hydro­pyrrolo­[1,2-c][1,3]thia­zole-5,11′-indeno­[1,2-b]quinoxaline] 
In the title compound, [Fe(C5H5)(C32H24N3OS)], both the thia­zolidine ring and the pyrrolidine ring adopt an envelope conformation, with the S atom and the phenyl-bearing C atom, respectively, as the flaps. The thia­zolidine ring mean plane makes a dihedral angle of 59.08 (11)° with the pyrrolidine ring mean plane, which in turn makes a dihedral angle of 83.40 (10)° with the cyclo­pentane ring, indicating that the latter two rings are almost orthogonal to one another. In the crystal, a pair of C—H⋯O hydrogen bonds link the mol­ecules forming inversion dimers. The dimers are linked via π–π inter­actions [centroid–centroid distance = 3.7764 (10) Å] involving the quinoxaline moieties forming chains propagating along [1-10].
doi:10.1107/S1600536813022605
PMCID: PMC3884422  PMID: 24426995
25.  6-Ferrocenoyl-7-(4-fluoro­phen­yl)spiro­[hexa­hydro­pyrrolo­[1,2-c][1,3]thia­zole-5,11′-indeno­[1,2-b]quinoxaline] 
In the title compound, [Fe(C5H5)(C32H23FN3OS)], both the thia­zolidine ring and the pyrrolidine ring adopt a twist conformation on the N—C(H) bridging bond. Their mean planes are inclined to one another by 10.05 (10)°, and they make dihedral angles of 82.09 (10) and 89.67 (11)°, respectively, with the cyclo­pentane ring. The F atom deviates by −0.0238 (2) Å from the benzene ring to which it is attached. In the crystal, mol­ecules are linked by a pair of C—H⋯O hydrogen bonds, forming inversion dimers.
doi:10.1107/S1600536813022617
PMCID: PMC3884446  PMID: 24426996

Results 1-25 (79774)