Acta Crystallographica Section C

Crystal Structure Communications

Volume 64, Part 2 (February 2008)

organic compounds

Acta Cryst. (2008). C64, o37-o40 [ doi:10.1107/S0108270107065171 ]

4-(4-Chlorobenzylidenehydrazonomethyl)benzonitrile and the bromo and iodo analogs

C. R. Ojala, W. H. Ojala and D. Britton

Abstract: 4-Cyano-4'-chlorobenzalazine [systematic name: 4-(4-chlorobenzylidenehydrazonomethyl)benzonitrile], C₁₅H₁₀ClN₃, occurs in two polymorphs. Polymorph A is isostructural with the corresponding dichloro compound. Polymorph B is isostructural with the bromo and iodo analogs, viz. C₁₅H₁₀BrN₃ and C₁₅H₁₀IN₃, respectively. The latter three structures all have approximately linear C-NX-C intermolecular contacts in which the NX contact distances are longer than those in the corresponding benzylideneanilines.

Formula: C₁₅H₁₀ClN₃, C₁₅H₁₀BrN₃ and C₁₅H₁₀IN₃


	Structure factor file (CIF format) (141.3 kbytes) [ doi:10.1107/S0108270107065171/tr3028Isup5.hkl ] Contains datablock I

	Structure factor file (CIF format) (107.6 kbytes) [ doi:10.1107/S0108270107065171/tr3028Brsup4.hkl ] Contains datablock Br

	Structure factor file (CIF format) (138.3 kbytes) [ doi:10.1107/S0108270107065171/tr3028Cl-Asup2.hkl ] Contains datablock Cl-A

	Structure factor file (CIF format) (107.7 kbytes) [ doi:10.1107/S0108270107065171/tr3028Cl-Bsup3.hkl ] Contains datablock Cl-B

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