Synthesis, structure and properties of trivalent and pentavalent tricarbabismatranes.

The first trivalent and pentavalent tricarbabismatranes were synthesized by the reaction of N(CH{2-LiCH}) with BiCl and subsequent reaction with XeF, respectively. The trivalent bismatrane was easily oxidized by air, while the pentavalent bismatrane difluoride was relatively stable to air. A similar pentavalent bismatrance dichloride was prone to C-Cl bond reductive elimination even at room temperature.