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在甲醇溶剂中以三苯基膦直接还原硝酸铜得到一价铜化合物[Cu(Ph3P)2(NO3)],并通过元素分析,红外光谱,电导测定及X-射线四圆衍射表征了配合物的结构和性质,晶体属于三斜晶系,空间群为P-1,晶胞参数如下:a=0.09193(2), b=1.3106(6), c=1.85(6)nm; α=64.78(3)°, β=72.80(3)°, γ=69.44(3)°, V=1.5564 nm3, Z=2, F(000)=672, Dcalc=1.387g.cm3, R=0.03354, Rw=0.03733.分析结果表明,配合物中除三苯基膦参加配位外,硝酸根属于双齿配位.“,”Mononuclear copper(Ⅰ) complex [Cu(PPh3)2(NO3)] has been synthesized by ligand reduction of cupric nitrate with PPh3 in methanol and characterized by speclic elemental analyses, molecular weight determination, IR spectra and X-ray single crystal analysis; its electronic conductivity has also been measured. The crystal is triclinic, space group P-1, a=0.09193(2), b=1.3106(6), c=1.85(6)nm; α=64.78(3)°, β=72.80(3)°, γ=69.44(3)°, V=1.5564 nm3, Z=2, F(000)=672, Dcalc=1.387g.cm3, R=0.03354, Rw=0.03733. The results show that PPh3 coordinates as mono-dentate ligand to the Cu(Ⅰ) atoms, and (NO3) behaves as a bidentate ligand in the prepared complex.