Pierre Braunstein, Chantal Charles, Pierre Braunstein, Chantal Charles, Guido Kickelbick and Ulrich Schubert
The unusual iron–bistin complex, [(OC)3Fe(µ-Ph2Ppy)(S
nPh2)(µ-Cl(S
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.