Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 18, 2000
Previous Article Next Article

Further structural motifs from the reactions of thioamides with diiodine and the interhalogens iodine monobromide and iodine monochloride: an FT-Raman and crystallographic study

Author affiliations

Abstract

The reactions of the thioamides thiourea, tu, 1-ethyl-2-thiourea, etu, 1,3-dimethyl-2-thiourea, dmtu, 1,3-diethyl-2-thiourea, detu, 3-methylbenzothiazole-2-thione, mbtt and 3-methylrhodanine, mrh, with one equivalent of diiodine have been studied; attempts have been made to characterise the resultant 1∶1 addition products using FT-Raman spectroscopy. It has been shown that these materials lie on a CT–ionic borderline. The crystal structure of dmtu·I2 has been determined and is shown to be ionic and of the form [(dmtu)2I]+I3, an arrangement previously only rarely found in crystallographic reports. The reactions of etu and dmtu with iodine monobromide and iodine monochloride and of mbtt with iodine monobromide give 1∶1 interhalogen addition products; initial FT-Raman investigations point to these adopting a CT ‘spoke’ structure. The reaction of tu with two equivalents of diiodine to give a bulk material of stoichiometry tu·I4 has been studied in detail and shown to lead to a variety of novel polyiodide arrangements, the crystal structures of two of which are reported, (tu)2(I2)3 and (tu)3(I2)5, and compared to each other, the previously reported (tu)2I2 and to tu itself. These two structures represent further, previously unreported, structural motifs available for these highly complicated systems.

Back to tab navigation

Supplementary files

Article information


Submitted
25 May 2000
Accepted
25 Jul 2000
First published
25 Aug 2000

J. Chem. Soc., Dalton Trans., 2000, 3106-3112
Article type
Paper

Further structural motifs from the reactions of thioamides with diiodine and the interhalogens iodine monobromide and iodine monochloride: an FT-Raman and crystallographic study

P. D. Boyle, J. Christie, T. Dyer, S. M. Godfrey, I. R. Howson, C. McArthur, B. Omar, R. G. Pritchard and G. Rh. Williams, J. Chem. Soc., Dalton Trans., 2000, 3106
DOI: 10.1039/B004182N

Search articles by author

Spotlight

Advertisements