Acta Cryst. (2007). C63, o739-o742 [ doi:10.1107/S0108270107053619 ]
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
Structure factor file (CIF format) (243.3 kbytes)
Structure factor file (CIF format) (349.8 kbytes)
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