Síntese, caracterização estrutural e propriedades ópticas de complexos de ouro (I) baseados em ligantes derivados de núcleos pirazolínicos

Abstract

This work presents the synthesis, structural characterization and some photophysical properties of new Gold(I) complexes based on Ligands containing Pyrazolinic nucleus in their structures. The (C6H5)3PAuCl compound was used as gold(I) precursor for the synthesis of the title complexes. The complexes were prepared by the reaction of [(C6H5)PAuCl] and the ligands in the presence of KPF6 in a 1:1:1 molar ratio in a MeOH/CH2Cl2 (1:1) medium affording the complexes 1, 2 and 3 in good yields. The prepared complexes present bluish luminescence in the solid state when excited at 320 nm. The complete characterization of the prepared complexes involves X-ray diffractometry, elemental analysis, 1H and 13C NMR, FT-IR spectroscopy, UV-Vis Spectroscopy and Luminescence studies.