Research Article: 2-{[(Biphenyl-2-yl)diazen­yl]methyl­idene}-1,3,3-trimethyl­indoline

Date Published: April 01, 2011

Publisher: International Union of Crystallography

Author(s): Graeme J. Gainsford, Mohamed Ashraf, Andrew J. Kay.


The title mol­ecule, C24H23N3, shows some delocalization of charge based on the small [8.0 (2)°] angle between the indolin-2-yl­idene ring system and the link methyl­diazene C2N2 atom plane. A further twist of 17.2 (3)° is subtended between the C2N2 plane and its attached benzene ring. The dihedral angle between the biphenyl rings is 47.96(14)°. In the crystal, the mol­ecules pack via C—H⋯π attractive inter­actions.

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For applications of azo compounds, see: Möhlmann & van der Vorst (1989 ▶); Zollinger (1987 ▶). For related compounds, see Jones (2004 ▶); Jones & Chrapkowski (2004 ▶); Gainsford et al. (2008 ▶). For a description of the Cambridge Structural Database, see: Allen (2002 ▶).




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