β-二酮双核铜(Ⅰ)配合物的合成与结构

Synthesis and Structure of Binuclear Copper (Ⅰ) Complex with β-Diketone

室温下，通过双二苯基膦甲烷还原［Cu（tfac）2 ］直接合成了双核铜（Ｉ）配合物［Cu（dppm）（tfac）］。（1），dppm= 双二苯基膦甲烷，tfac=2噻吩甲酰三氟丙酮，研究了配合物的物理化学和光谱性质，并经X- 射线单晶结构分析确定了配合物（1）的分子结构，晶体属单斜晶系，空间群p2 1 ／n，a= 1.3028（5），b＝1 ．3744（4），2．0278 （5）nm，β＝94．48（2），Dc=1．35ｇ·cm－3’，Z=2，V＝3．6199nm3’，R＝0．04978，中心铜离子分别由来自两个不同dppm的P原子和tfac的两个氧原子形成四面体配位结构。

At room temperature, the binuclear copper (I) complex [Cu(dppm) (ifac) ],(1) [dppm = his (diphenylphosphine) methane, tfac = 2-thenoyltrifluoroacetone ] was prepare d by reduction reaction between dppm and Cu(tfac)2. The structure of the complex was characterized by IR, 3lp NMR, XPS spectra and X-ray diffraction analysis. Crystal(1) belongs to monoclinic, space group P21 / n, a = 1. 3028(5), b = 1. 3744(4), c = 2. 0278(5) nm, β= 94. 48(2)', Dc = 1. 351g' cm-3', Z = 2, V= 3. 6199nm', R = 0. 04978. Each copper (II) ion is coordinated by the phosphorus of dppm and two oxygen atoms of if ac to form tetrahedron coordination structure.