Chemistry of dithiocarbamate derivatives of amino acids. Part II. Complexes of nickel(II) with derivatives of branched and cyclic amino acids |
| |
Authors: | Manuel Castillo Julio J. Criado Benigno Macías María V. Vaquero |
| |
Affiliation: | (1) Departamento de Química Inorgánica, Facultad de Química, Universidad de Sevilla, Sevilla, Spain;(2) Departamento de Química Inorgánica, Facultdad de Farmacia, Universidad de Salamanca, Apartado 449, Salamanca, Spain |
| |
Abstract: | Summary Barium salts of the dithiocarbamate derivates of the amino acids: DL-valine, L-valine, DL-leucine, DL-isoleucine and L-proline have been synthesized. The anions have been used to obtain the corresponding nickel(II) complexes in acid form. The complexes are diamagnetic, and coordination takes place in a near-square planar geometry around the nickel(II) ion through the sulphur atoms of the dithiocarbamate moiety, the structure being confirmed by i.r.,1H n.m.r., u.v.-vis spectros copies and by chemical analysis.No significant difference has been found between the physicochemical properties (i.r. and 'H n.m.r. spectra and magnetic properties) of the complexes prepared from the dithiocarbamate derivatives of DL- and L-valine, but d-d bands in the u.v.-vis spectra show a slight different intensity. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|