Thiostannate Tin-Tin Bond Formation in Solution: In Situ Generation of the Mixed-Valent, Functionalized Complex [{(RSn^IV)₂(μ-S)₂}₃Sn^III₂S₆]

In broad daylight : The double‐decker thiostannate [(RSn IV ) 4 S 6 ] ( 1 , R=CMe 2 CH 2 COMe) condenses to form [{(RSn IV ) 2 (μ‐S) 2 } 3 Sn III 2 S 6 ] ( 2 ; see picture). This mixed‐valent complex, which formally contains both Sn III and Sn IV atoms as confirmed by Mössbauer spectroscopy and DFT calculations, forms by a complicated, concerted mechanism. Additionally, 2 provides six carbonyl groups for further derivatization. magnified image