Affiliations: Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, México, D.F., México | Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Morelos, México | Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma del Estado de Morelos, Avenida Universidad, Chamilpa. Cuernavaca, Morelos, México
Note: [] Corresponding author: Raymundo Cea-Olivares, Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, México 04510, D.F., México. Tel.: +52 55 56224466; E-mails: [email protected], [email protected]
Abstract: Four new optically active organotin(IV) O,O'-di-(−)-menthyldithiophosphates: Me3SnS2P(OMen)2 1, Ph3SnS2P(OMen)2 2, Me2Sn[S2P(OMen)2]2 3 and Ph2Sn[S2P(OMen)2]2 4 (Men = Menthyl) have been prepared in ethanol from sodium O,O'-(−)-dimenthyldithiophosphate and the corresponding tri- or diorganotin(IV) chlorides. All the compounds display optical activity and were characterized by elemental analyses, IR, EM FAB+, and multinuclear NMR, (1H, 13C, 19P 119Sn). In addition, the molecular structures of 3 and 4 were determined by X-ray single crystal analyses. Both complexes consist of discrete molecules, where tin is bonded to two carbon atoms and the four sulfur atoms of two anisobidentate dithiophosphate ligands. The environment around the central tin atom exists in skew-trapezoidal bipyramidal geometry.
