The differences in solid state structures of C,N-chelated nbutyltin(IV) fluorides

The solid state structures of products of fluorination of LCNnBuSnCl2 (where LCN is 2-[(CH3)2NCH2]C6H4–) by different methods are reported. The reaction of 3 equiv. of [NH4]+[LCNnBuSnF3]− and Pr(OTf)3 led to dimeric arrangement [LCNnBuSnF(μ-F)2SnLCNnBuF] · 2HOTf. Two different polymorphs of polymeric [LCNnBuSnF2]n have been obtained by crystallization. Prepared compounds were studied by X-ray crystallographic methods, DSC and theoretical calculations at the B3LYP/LANL2DZ level.