Infra-red spectra of compunds containing the Azo-group
- 1 January 1953
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Chemistry
- Vol. 6 (4) , 341-359
- https://doi.org/10.1071/ch9530341
Abstract
Infra-red absorption spectra, over the rock-salt region, are reported for 43 substances believed to contain the -N=N- group. In the " double bond " region two common frequencies are noted, at 1406 and 1579 cm-1 (with standard deviations of �14 and � 9 cm-1 respectively). Since these may arise wholly or partly from vibrations of the aromatic or heterocyclic nuclei adjacent to the azo-linkages, the conclusion is drawn that N=N stretching modes, if active in absorption, are contributors to either or both of the bands at the points mentioned.Keywords
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