A stable cyclic (silyl)(thia)silylene via stepwise cycloaddition.

Authors

John C Johnson, Yuzhong Wang, Pingrong Wei, Mitchell E Lahm, Henry F Schaefer, Gregory H Robinson

Published in

Dalton transactions (Cambridge, England : 2003). Jul 29, 2026. Epub Jul 29, 2026.

Abstract

Low temperature reaction of imidazole-based dithione dimer (1) with carbene-stabilized disilicon(0) (2) (in a 1 : 1 molar ratio) gives a carbene-stabilized cyclic (silyl)(thia)silylene (3), wherein a dithiolene unit (C₂S₂) is integrated into a C₂S₂Si₂ six-membered ring. Computations suggest that 3 is formed via an unprecedented stepwise [4 + 2]-like cycloaddition reaction between a Si^IISi⁰ double bond and a dithione.

PMID:
42522677
Bibliographic data and abstract were imported from PubMed on 29 Jul 2026.

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