Diorganotin(IV) dithiocarbamate complexes as chromogenic sensors of anion binding
Por:
Fuentes-Martínez J.P., Toledo-Martínez I., Román-Bravo P., Garcia, PGY, Godoy-Alcántar C., López-Cardoso M., Morales-Rojas H.
Publicada:
8 dic 2009
Resumen:
One dinuclear chlorodiphenyltin (IV) dithiocarbamate complex (1) and four mononuclear complexes of general formula Ph(2)Sn(S(2)CNR)Cl (2, 3, 5, and 6) have been synthesized and characterized both in solid-state and solution. X-ray structures for complexes 1, 3 and 6 demonstrated a five-coordination geometry around of tin atoms, in which dithiocarbamate ligand chelates asymmetrically the metal center. As shown by (119)Sn NMR spectroscopy, five-coordination geometry observed in the solid-state remains in solution. The stability of these chlorodiphenyltin(IV) dithiocarbamate complexes in the presence of biologically relevant anions such as acetate, dicarboxylates of general formula (-)OOC-(CH(2))(n)-COO(-) (n = 2-8), dihydrogenphosphate, hydrogensulfate, and halides has been examined in acetonitrile solutions. For all of these organotin(IV) complexes the displacement of the coordinated ligands (i.e., chloride and dithiocarbamate) from the organotin(IV) moiety occurred in the presence of m
Filiaciones:
Fuentes-Martínez J.P.:
Centro de Investigaciones Químicas, Universidad Autónoma Del Estado de Morelos, Av. Universidad 1001, C.P. 62209 Cuernavaca, Mexico
Toledo-Martínez I.:
Centro de Investigaciones Químicas, Universidad Autónoma Del Estado de Morelos, Av. Universidad 1001, C.P. 62209 Cuernavaca, Mexico
Román-Bravo P.:
Centro de Investigaciones Químicas, Universidad Autónoma Del Estado de Morelos, Av. Universidad 1001, C.P. 62209 Cuernavaca, Mexico
Godoy-Alcántar C.:
Centro de Investigaciones Químicas, Universidad Autónoma Del Estado de Morelos, Av. Universidad 1001, C.P. 62209 Cuernavaca, Mexico
López-Cardoso M.:
Centro de Investigaciones Químicas, Universidad Autónoma Del Estado de Morelos, Av. Universidad 1001, C.P. 62209 Cuernavaca, Mexico
Morales-Rojas H.:
Centro de Investigaciones Químicas, Universidad Autónoma Del Estado de Morelos, Av. Universidad 1001, C.P. 62209 Cuernavaca, Mexico
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