| Abstract: | Polysulfonylamines. LXXXVIII. Occurrence of Three Linkage-Isomeric Complex Molecules in One Crystal: Formation and Structure of the Dimeric Dioganyltin(IV) Hydroxide Me2{(MeSO2)2N}(phen)Sn(μ-OH)]2 Crystal of the title compound (triclinic, space group P1 ) were obtained from Me2SnN(SO2Me)2]2 and 1,10-phenanthroline by adventitious hydrolysis. The structure consists of four independent Me2{(MeSO2)2N}(phen)Sn(OH)] moieties A , A ′, B , B ′ that are associated via four-membered SnO(H)]2 rings to form two centrosymmetric homodimers AA , BB and one asymmetric heterodimer A ′ B ′. The four crystallographically independent tin atoms attain moderately distorted pentagonalbipyramidal coordinations, the apical positions being occupied by the methyl groups and the equatorial sites by the oxygen atoms of the μ-OH groups, the nitrogen atoms of the bidentate phen ligand and one oxygen atom of the (MeSO2)2N? anion. Each anion is further connected to the respective complex core through an Sn? O? H…? A hydrogen bond, where the acceptor A is nitrogen in AA and the A ′ fragment of A ′ B ′, or oxygen in BB and the B ′ fragment of A ′ B ′. The distinct hydrogen bond motifs in the three linkageisomeric complex units originate from two essentially different conformations of the dimesylamide anions. |
