Acta Crystallographica Section C

Crystal Structure Communications

Volume 63, Part 12 (December 2007)


organic compounds



ln3061 scheme

Acta Cryst. (2007). C63, o739-o742    [ doi:10.1107/S0108270107053619 ]

2'-(4-Chlorophenyl)-2,3,4,5,6,7-hexahydro-4',7'-methanospiro[9H-fluorene-9,3'-1H-indazole]-1'-carbonitrile and methyl 4'-chloro-2'-(4-chlorophenyl)-1'-cyanospiro[9H-fluorene-9,3'-pyrazolidine]-4'-carboxylate

E. Bilewicz, M. Malecka, S. J. Grabowski and G. Mloston

Abstract: The title compounds, C27H22ClN3, (IV), and C24H17Cl2N3O2, (V), were synthesized as part of our ongoing studies on (2+3)-cycloaddition reactions. Compound (V) crystallizes with two molecules in the asymmetric unit. The pyrazolidine ring of compound (IV) adopts a twisted conformation, while in compound (V) it adopts a twisted and an envolope conformation in the two molecules. There are short intermolecular contacts, which can be recognized as unconventional hydrogen bonds, in both structures.

Formula: C27H22ClN3 and C24H17Cl2N3O2


hkldisplay filedownload file

Structure factor file (CIF format) (243.3 kbytes)
[ doi:10.1107/S0108270107053619/ln3061IVsup2.hkl ]
Contains datablock IV


hkldisplay filedownload file

Structure factor file (CIF format) (349.8 kbytes)
[ doi:10.1107/S0108270107053619/ln3061Vsup3.hkl ]
Contains datablock V


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