The crystal structure of p-azo-toluene (CH3-C6H4N)2

Padmanabhan, V. M. ; Shankar, Jagdish ; Khubchandani, P. G. (1958) The crystal structure of p-azo-toluene (CH3-C6H4N)2 Proceedings of the Indian Academy of Sciences, Section A, 47 (5). pp. 323-328. ISSN 0370-0089

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The crystal structure of p-azo-toluene has been determined by single crystal methods. The unit cell is monoclinic with a=12.01 Å, b=5.02 Å, c=9.32 Å, β=90°12'. The space-group is P21/a-C2h5 and there are two molecules per unit cell. Atomic positions were determined by electron density projections making use of 'trial and error' methods. Structure factors were obtained from visually estimated intensities on Weissenberg photographs taken with CuKα radiation. The planar benzene rings are attached by zig-zag C-N=N-C bond with the bond distance -N=N-=1.27 Å and the angle N=N-C 134°30'. The plane of the benzene ring makes an angle with the (ac) plane, its orientation is obtained by rotating it about the N-C bond by 10°. The nearest distance between two molecules in the crystal is 3.92 Å.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
ID Code:35143
Deposited On:11 Apr 2011 13:18
Last Modified:17 May 2016 18:03

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