STUDIES OF THE COORDINATION CHEMISTRY OF PYRAZOLYLBORATE DERIVATIVES WITH COPPER(II) IONS

摘要

A series of new complexes, [HB{pz~An}_3]Cu)_2OAc (1), [HB{pz~An}_3]CuCl(pz~An)_3]CuCl~AnH) (2), ([HB{pz~(An,Me)}_3]Cu)_2OAc (3) and [HB{pz~(An, Me)}_3]CuCl(pz~(An,Me)H) (4) [pz~An = 3-(p-anisyl)-5-methylpyrazolyl] have been synthesized and characterized by elemental analyses, IR spectra, ESR spectra, mass spectra and CV measurements. The compounds (2) and (4) are five-coordinated with an additional pyrazole ligand. The infrared bands V_as(CO_2) and V_s(CO_2) indicate that the acetate is an unidentate ligand in (1) but a bridging one in (3).