Research Article: 2,3,5-Triphenyl-2H-tetra­zol-3-ium bromide ethanol monosolvate

Date Published: August 01, 2012

Publisher: International Union of Crystallography

Author(s): Hoong-Kun Fun, Tze Shyang Chia, Gamal A. E. Mostafa, Mohamed M. Hefnawy, Hatem A. Abdel-Aziz.


In the title compound, C19H15N4+·Br−·C2H5OH, the tetra­zole ring makes dihedral angles of 57.44 (9), 50.92 (9) and 4.65 (8)° with the attached phenyl rings. In the crystal, the cation and the anion are linked to each other by inter­molecular C—H⋯Br hydrogen bonds into an infinite chain along the b axis. The anion and the ethanol solvent mol­ecule are linked by an O—H⋯Br hydrogen bond. The crystal studied was an inversion twin with a refined component ratio of 0.632 (5):0.368 (5).

Partial Text

For the biological activity of the triphenyl­tetra­zolium ion, see: Mostafa (2007 ▶); Hassanien et al. (2003 ▶); Abbas et al. (2001 ▶). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986 ▶).




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