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119Sn NMR study of organotin compounds having intramolecular Sn—N coordination

✍ Scribed by Johann T. B. H. Jastrzebski; David M. Grove; J. Boersma; Gerard van Koten; Jan-Meine Ernsting

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
602 KB
Volume
29
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^119^Sn NMR data are reported for organotin compounds containing potentially C,N‐chelating ligands capable of forming five‐ or six‐membered chelate rings. The ^119^Sn chemical shifts of divalent organotin compounds containing such a ligand are found at relatively high frequency. Intramolecular coordination in tetraorganotin compounds has little influence on their ^119^Sn chemical shifts. However, additional coordination in tri‐ and di‐organotin halides causes a large shift to lower frequency of about 100 ppm. Finally, for organotin compounds which exist as a diastereoisomeric mixture in solution, two well resolved ^119^Sn resonances are observed.

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