Acta Crystallographica Section C

Crystal Structure Communications

Volume 57, Part 11 (November 2001)

Acta Cryst. (2001). C57, 1299-1302 [doi:10.1107/S0108270101011556]

Cocrystals of 2-(2,4,5,7-tetranitrofluoren-9-ylidene)propanedinitrile and 2,4,5,7-tetranitrofluoren-9-one with chlorobenzene

A. S. Batsanov, I. F. Perepichka, M. R. Bryce and J. A. K. Howard

Abstract: Crystallization of 2,4,5,7-tetranitro-9-(dicyanomethylene)fluorene [DTeF; systematic name: 2-(2,4,5,7-tetranitrofluorene-9-ylidene)propanedinitrile] and 2,4,5,7-tetranitrofluoren-9-one (TeNF) from chlorobenzene in the presence of [bold pi] -donor compounds yielded the chlorobenzene solvate, C₁₆H₄N₆O₈·C₆H₅Cl, and the bis(chlorobenzene) solvate, C₁₃H₄N₄O₉·2C₆H₅Cl, respectively. Both structures comprise mixed stacks of twisted fluorene moieties interspersed with nearly parallel chlorobenzene molecules. Solvent-free crystals of DTeF and TeNF were obtained from pure chlorobenzene.

Formula: C₁₆H₄N₆O₈·C₆H₅Cl and C₁₃H₄N₄O₉·2C₆H₅Cl

Online 13 November 2001


	Structure factor file (CIF format) (243.0 kbytes) Contains datablock I

	Structure factor file (CIF format) (211.3 kbytes) Contains datablock II

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