铜(I)化合物[Cu(PPh_3)_2(BH_4)]的合成

Synthesis of the copper(I) complex [Cu(PPh_3)_2(BH_4)]

室温下 ,在乙醇中通过取代反应合成了单核铜 (I)配合物 [Cu(PPh3 ) 2 (BH4 ) ],通过元素分析、电导、红外光谱 ,分子量测定等方法对配合物进行了表征 ,并经X -射线单晶结构分析确定了配合物的结构 ,晶体属单斜晶系 ,空间群C2 /c ,a=2 4.776 (4 ) ,b =9.173(7) ,c =15 .5 6 4(2 ) ;β =116 .10 (1)° ,Z =4,V =3176 .73 3 ,F(0 0 0 ) =12 5 6 ,μ(MoKα) =8.11cm-1,Dc=1.2 6 g/cm3 ,M =6 0 2 .79,R =0 .0 39,Rw=0 .0 5 0 .研究结果表明中心铜原子由单齿配位的PPh3 和双齿配位的BH4 形成四面体配位结构。

Mononuclear copper(I) complex [Cu(PPh-3)-2(BH-4)] has been synthesized by ligand replacement reaction in methanol and characterized by elemental analyses, molecular weight determination, IR spectra and X-ray single crystal analysis; its conductivity has also been measured. The crystal is monoclinic, space group C2/c, a=24.776(4), b=9.173(7), c=15.564(2); β=116.10(1)°, Z=4, V=3176.73+3, F(000)=1256, μ(MoKα)=8.11cm+{-1}, Dc=1.26g/cm+3, M=602.79, R=0.039, Rw=0.050. The results show that PPh-3 coordinates as monodentate ligand to the Cu(I) atoms, and BH-4 behaves as a bidentate ligand in the prepared complex. The central copper atom belongs to tetrahedron coordination geometry.