A donor-stabilized silanethione or a Si-substituted N-heterocyclic platinum carbene?

The Si-substituted N-heterocyclic platinum or silanethione carbene for a donor-stabilized was studied. Synthesis were carried out under an inert atmosphere of dry nitrogen by using standard Schlenk techniques and dry solvents. The exploration of both, the synthesis and coordination chemistry of unknown methimazolylsilanes, led to an unprecedented rearrangement process to N-Si-substituted N-heterocyclic carbene (NHC). It was observed that this compound exhibits interesting structural features due to which, it is described as donor-stabilized silanethione. Oxidative addition of a methimazolylsilane to Pt⁰ provides easy access to novel N-hibited structural features consistent with donor-stabilized silanethione, thereby contributing to the pool of Si=X bonding patterns. NH moiety of the latter may allow for further substitution reactions thus, representing a convenient entrance into fictionalized NHC coordination chemistry, the applicability of which is subject to further investigations.