Synthesis, Structural Characterization, Spectroscopic Properties of Copper (I) Complexes [Cu_2(CH_3CN)_4(dppm)2](BF_4)_2 and [Cu_2(pmk)(dppm)2](BF_4)_2(dppm = bis(diphenylphosphino)methane, pmk = bis(2-pyridylmethyl) ketazine)

摘要

Two new binuclear copper(I) complexes, [Cu_2(CH_3CN)_4(dppm)_2](BF_4)_2 (1), [Cu_2(pmk)(dppm)2](BF_4)_2 (2) (dppm = bis(diphenylphosphino)methane, pmk = bis(2-pyridylmethyl) ketazine), were designed and synthesized. These complexes were characterized by IR, ~~~1H-NMR, ~(31)P–NMR, UV-vis spectrum, and Xray crystal structure analysis. The structural analysis reveal each copper(I) in the complexes is four coordinate N_2P_2 and adopts a distorted-tetrahedral geometry. At room temperature, all the complexes exhibit middle or weak photoluminescence in the solid state(485–504 nm) or acetonitrile solution (380–585 nm).