Stereochemistry of diorganotin(IV) bis(8-quinolinolate) and bis(8-quinolinethiolate) complexes in solution studied by NOE-difference spectroscopy

Ivan Tkáč, Jaroslav Holeček, Antonín Lyčka

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2 Scopus citations

Abstract

It was proved by 1H NOE-difference spectroscopy that all diorganotin(IV) complexes of type R2Sn(oxin)2 and R2Sn(txin)2 (where oxin = 8-quinolinolate, txin = 8-quinolinethiolate, R = butyl, phenyl, benzyl and vinyl, respectively) in chloroform solution have a distored cis-octahedral coordination at the metal centre. Two oxygen (sulphur) atoms occupy positions trans to each other, while the estimated bond angles OSnO (SSnS) are in the range 150-165°. Nitrogen atoms are cis to each other and the bond angles NSnN are less than 90°. Intramolecular dynamic processes have to be taken into account.

Original languageEnglish (US)
Pages (from-to)311-320
Number of pages10
JournalJournal of Organometallic Chemistry
Volume418
Issue number3
DOIs
StatePublished - Nov 5 1991

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