Synthesis of niobium pentachloride complexes with 1,5-diaryl-substituted 2,4-dithiobiurets and 1,5-diaryl-substituted 2-thiobiurets and their semiconducting properties

Abstract

In tetrahydrofuran medium, niobium pentachloride forms complex compounds with 1,5-diaryl-substituted 2,4-dithiobiurets (DSDTB) and 1,5-diaryl-substituted 2-thiobiuret (DSTB) having general formula NbCI5L, where L is a molecule of bidentate ligand. The complex compounds have been characterized on the basis of elemental analysis, molar conductance, magnetic susceptibility, Infrared spectral studies, and electrical conductivity measurements. Coordination through sulfur atoms in the case of dlaryl dithiobiurets and coordination through sulfur and oxygen atoms in the case of diaryl thiobiurets have been proposed for these complexes, and their band gaps have been found in the range 1.09-1.47 eV.

Synthesis and Catalytic Activity of Semiconducting p-Cymene Ruthenium 1,3,4-Thiadiazole and 1,2,4-Triazole Complexes

“…Conductivity measurements of complexes were synthesized by pellet. [3][4][5] In addition to their economic importance and contribution to the quality of life, catalyst is interesting for the subtlety with which they go about their business. [6] Many studies during the last decade have been designed to identify a good Ru(II) catalyst for transfer hydrogenation of ketones.…”