Acta Crystallographica Section C

Crystal Structure Communications

Volume 63, Part 12 (December 2007)

organic compounds

 

Three 9-[(E)-2-(4-halogenophenyl)vinyl]-9H-carbazoles

M. Kubicki, W. Prukala and B. Marciniec

Abstract: The crystal structures of 9-[(E)-2-(4-fluorophenyl)vinyl]-9H-carbazole, C₂₀H₁₄FN, (I), 9-[(E)-2-(4-chlorophenyl)vinyl]-9H-carbazole, C₂₀H₁₄ClN, (II), and 9-[(E)-2-(4-bromophenyl)vinyl]-9H-carbazole, C₂₀H₁₄BrN, (III), are determined mainly by van der Waals forces. The chloro and bromo derivatives are highly isomorphous, while the fluoro derivative has a different packing mode. Weak C-HX interactions are also involved in the crystal packing. The molecular structures of the three compounds are similar, with relatively large twist angles of ca 55° between the carbazole and benzene planes.

Formula: C₂₀H₁₄FN, C₂₀H₁₄ClN and C₂₀H₁₄BrN

	Structure factor file (CIF format) (176.2 kbytes) [ doi:10.1107/S0108270107054571/av3120Isup2.hkl ] Contains datablock I
	Structure factor file (CIF format) (165.9 kbytes) [ doi:10.1107/S0108270107054571/av3120IIsup3.hkl ] Contains datablock II
	Structure factor file (CIF format) (178.4 kbytes) [ doi:10.1107/S0108270107054571/av3120IIIsup4.hkl ] Contains datablock III

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