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为了研究稀土离子与氨基酸 (Pro)的相互作用 ,在pH≈ 3.5水溶液中合成了高氯酸八水·(脯氨酸 )合铱 (Ⅲ )铒 (Ⅲ ) ,获得了单晶 ,并经四圆衍射仪测定了结构 .配合物组成为C2 0 H52 Cl6ErN4 O4 0 Y ,属三斜晶系 ,P1空间群 .晶胞参数a =0 .986 0 (2 )°nm ,b =1.30 2 0 (5 )nm ,c=1.36 32 (5 )nm ,α =10 9.32 (3)° ,β=110 .19(2 )° ,γ =10 0 .96 (2 )°,V =1.45 6 (1)nm3,Z =1,Dc=1.6 6 3g/cm3,μ =2 .797mm-1,F(0 0 0 ) =72 9.配合物分子中 ,Y3+‘、Er3+在相应位置上出现的几率各为 5 0 % ,相邻两个金属离子被两个以桥式双齿配位的Pro分子连接 ,每个金属离子除了与 4个羧基O配位外 ,还与 4个水分子的氧配位 ,配位数为 8,形成变形的四方反棱柱 .图 4表 3参 10
In order to study the interaction between rare earth ions and amino acids (Pro), perchlorate (proline) iridium (Ⅲ) erbium (Ⅲ) was synthesized in pH≈3.5 aqueous solution, The structure of the complex was determined by the circular diffractometer. The composition of the complex was C2 0 H52 Cl6 ErN4 O4 0 Y, belonging to triclinic system with space group P1. The unit cell parameters a = 0.986 0 (2) ° nm, b = 1.30 2 0 Α = 10 9.32 (3) °, β = 110.19 (2) °, γ = 10 0 .96 (2) °, V = 1.45 6 (1) nm3, Z = 1, Dc = 1.6 6 3g / cm3, μ = 2.797mm-1, F (0 0 0) = 72 9. The probability of occurrence of Y3 + ’and Er3 + in the corresponding positions in the complex molecule is 50% of the adjacent two metal ions are bridging two bidentate Pro molecules connected to each metal ion in addition to four carboxyl O coordination, but also with four water molecules of oxygen coordination, The coordination number is 8, forming a deformed square anti-prism