Acta Cryst. (2007). C63, o754-o757 [ doi:10.1107/S0108270107054571 ]
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)
Structure factor file (CIF format) (165.9 kbytes)
Structure factor file (CIF format) (178.4 kbytes)
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