Reactivity of a N→Sn Coordinated Distannyne: Reduction and Hydrogen Abstraction.

The reduction ability of a N→Sn coordinated distannyne {LSn}2, where L is [C6H3‐2,6‐(Me2NCH2)2]– is tested towards organic molecules ethylene and cyclooctatetraene. These reactions provide the compound [{LSn}3SnH] (2), as the result of a hydride abstraction. DFT calculations suggest that compound 2 can be interpreted as highly covalently bonded {HSnI} and {(SnIL)3} fragments. While the reduction of the C=C bond is not observed in the reaction of 1 with organic molecules, the reducing ability of 1 is observed in the reaction with inorganic SnO. Complex 1 is able to reduce SnO and the organotin(II) oxide {LSn}2O (3) is obtained. Moreover, compound 3 is able to coordinate an excess of SnO to yield the organotin(II)–tin(II)–oxo cluster L4Sn10O8 (4). [ABSTRACT FROM AUTHOR]