Dithiocarbamate complexes of trivalent lanthanides and X-ray crystal structure of tris (N, N-Diisopropyldithiocarbamate) (1, 10-phenanthroline) neodymium (III)

摘要

A series of lanthanide complexes of the generalformula, [Ln(i-Pr2dtc)3 (phen)] (Ln=La, Pr, Nd, Sm-Lu, Y; Ln(i-Pr2dtc)=N, N-diisopropyldithiocarbamate; phen=1,10-phenanthroline_, have been prepared and characterized by means ofchemical analyses, IR spectra, electronic spectra, 1H NMR spectraand conductivity measurements. The X-ray crystal and molecularstructure of [Nd(i-Pr2dtc)3(phen)] has been determined bydiffractometer data. The central Nd(III) atom is octa-coordinatedand is in a distorted dodecahedral geometry, being coordinatedthrough six sulphur atoms of three bidentate dithiocarbamates andthrough two nitrogen atoms of a phen ligand. Spectroscopicproperties of all complexes are discussed.