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77Se, 13C and 1H NMR investigations on ortho-carbonyl benzeneselenenyl derivatives

✍ Scribed by Gabriel Llabrès; Marcel Baiwir; Jean-Louis Piette; Léon Christiaens

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
287 KB
Volume
15
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

o‐Carbonyl benzeneselenenyl compounds with COCH~3~, CHO and COOCH~3~ as carbonyl functions and SeCl, SeBr, SeSCN, SeSeCN, SeCN and SeCH~3~ as selenium‐containing groups, have been studied by ^1^H, ^13^C and ^77^Se NMR spectroscopy. The IR CO stretching frequencies of these compounds are also reported. If the SeCH~3~ derivatives are excluded, the compounds mainly adopt a planar ‘cis’ conformation, due to an interaction between the CO group and the selenium atom. The range of over 800 ppm for the observed ^77^Se chemical shifts makes ^77^Se NMR spectroscopy a powerful tool for physical organic chemists.

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