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Self‐Reduction of [Ph 4 P][Nb(SCH 2 CH 2 CH 2 S) 3 ] with Formation of a Nb 2 IV Complex
Author(s) -
Tatsumi Kazuyuki,
Sekiguchi Yoitsu,
Sebata Michiyo,
Nakamura Akira,
Cramer Roger E.,
Chung Thomas
Publication year - 1989
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198900981
Subject(s) - acetonitrile , reactivity (psychology) , chemistry , methanol , ion , ring (chemistry) , salt (chemistry) , chelation , crystallography , medicinal chemistry , inorganic chemistry , reduction (mathematics) , stereochemistry , organic chemistry , mathematics , medicine , alternative medicine , geometry , pathology
The size of the chelate ring determines the reactivity of Nb v complexes: Whereas [Ph 4 P][Nb(SCH 2 CH 2 S) 3 ] is completely stable in acetonitrile, in the case of the homologous title complex a reductive dimerization takes place. The anion 1 formed initially reacts further with methanol to give 2 , which was isolated as the Ph 4 P‐salt; the structure of this anion is shown on the right.\documentclass{article}\usepackage{amssymb}\pagestyle{empty}\begin{document}$${\begin{array}{ll}&[{\rm Nb_2(SCH_2CH_2CH_2S)_5}]^{2\ominus}\quad{\bf 1}\\&\\&[{\rm Nb_2(OM_e)_3(SCH_2CH_2CH_2S)_3}]^{\ominus}\quad{\bf 2}\end{array}}$$\end{document}