Synthesis and characterization of new tin derivatives derived from 3,5,6-trichlorosalicylic acid: Cage, chain and ladder X-ray crystal structures

Six new tin complexes of the formulae [(Ph3Sn)(2)(PhSn)(10)(Sn)(2)(mu(2)-O)(8)(mu(3)-O)(18)(C7HCl3O3)(2)](1), {[(n-Bu)(3)-Sn](2)(C7HCl3O3)}(n) (2), [(Me3Sn)(2)(C7HCl3O3)](n) (3), [(Ph2Sn)(C7HCl3O3)(2)] (4), [(n-Bu)(2)Sn(C7HCl3O3)(2)] (5) and [(Me2Sn)(4)(C7HCl3O3)(2)(mu(3)-O)(2)(CH3O)(2)] (6) have been obtained from 3,5,6-trichlorosalicylic acid and an organotin chloride or organotin oxide. All the complexes were characterized by elemental analysis, FT-IR and NMR (H-1, C-13 and Sn-119) spectroscopy; complexes 1,3 and 6 were further characterized X-ray crystallography diffraction analyses. The structural analyses reveal that complex 1 has a novel cage structure, which contains two triphenyltin nuclei, 10 monophenyltin nuclei and two inorganic tin nuclei; complex 3 has an infinite chain structure and complex 6 displays a typical ladder structure. (c) 2012 Elsevier Ltd. All rights reserved.