Differing degrees of five-coordination for similar tin atoms in the polymetallic complex [(OC)₃Fe[upper bond 1 start][lower bond 1 start](µ-Ph₂Ppy)(S[lower bond 1 end]nPh₂)(µ-Cl)(S[upper bond 1 end]nClPh₂)]

Abstract

The unusual iron–bistin complex, [(OC)₃F[upper bond 1 start][lower bond 1 start]e(µ-Ph₂Ppy)(S[lower bond 1 end]nPh₂)(µ-Cl(S[upper bond 1 end]nClPh₂)], obtained by silicon–tin exchange from a Si–Fe–Sn precursor, contains two tin atoms showing different degrees of five-coordination, a unique feature of relevance to hypercoordination of main-group elements.

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