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Formation and Reactivity of Silicon–Sulfur and Silicon–Selenium Double Bonds. The First X-Ray Structure of a Silanethione

✍ Scribed by Dr. Prabhat Arya; Dr. Jacqueline Boyer; Dr. Francis Carré; Prof. Dr. Robert Corriu; Dr. Gérard Lanneau; Prof. Dr. Jacques Lapasset; Myriam Perrot; Christian Priou

Publisher: John Wiley and Sons
Year: 1989
Tongue: English
Weight: 380 KB
Volume: 28
Category: Article
ISSN: 0044-8249
DOI: 10.1002/anie.198910161

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✦ Synopsis

ands such as S, CSMe and eS2CNR2.[7.".'21 In the final products of these dimerizations, the two chelate ligands can adopt, in principle, either a cisoid (5) or a transoid (6) disposition. However, the factors leading to one or the other ge-0 0 :: ,\s-C I X L-C / x OC-Mn-S' OC-Mn-S' " oc' I I oc' I 5 cisoid 6 transoid ometry

are not yet well understood. In the special case of 4, the intramolecular interactions of the hydrogens with the manganese and sulfur atoms could play a significant role in the adoption of the cisoid" 31 configuration, since these interactions would not be possible in the transoidgeometry. However, this kind of hydrogen interaction has been absent in the other dimeric structures (either cisoid or transoid) reported so far.

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