Perceptive variation of carboxylate ligand and probing the influence of substitution pattern on the structure of mono- and di-butylstannoxane complexes

Seven new butylstannoxane complexes of general compositions [nBu6Sn6O6(Ln)6] [Ln = L1 (1), L2 (2) and L3 (3)], [nBu8Sn4O2(Ln)4] [Ln = L3 (5), L4 (6) and L5 (7)] and a co-crystal [nBu6Sn6O6(L1)6]·(HL6)·2(C7H8) (4) were synthesized and fully characterized. The molecular structures of compounds 1-3 and the complex moiety of 4 display hexameric Sn6O6 clusters with drum-like structures, but 5-7 reveal Sn4O2 cores with ladder-type structural motifs.