苦味酸锰、钴、镍、铜、锌、镉与4′─硝基苯并─15─冠─5配合物的合成与表征

Syntheses and Characterization of Nitro- 4' -Benzo-15-Crown-5 and its M (M=Mn^(2+), Co^(2+), Ni^(2+), Cu^(2+), Zn^(2+),Cd^(2+))picrate Complexes

在乙腈─乙醇─水（2：2：1，V／V／V）的混合溶剂中制备了六种金属（锰、钴、镍、铜、锌、镉）苦味酸盐与4′─硝基苯并─15─冠─5的固态配合物，其组成为M（pic）2·2L·XH2（M＝Mn、CU，x＝2；M＝Co，Ni，Zn，Cd，x＝4；pic＝苦味酸根；L＝4′─NO2B15CS），并通过元素分析、红外光谱、紫外光谱和摩尔电导对该系列配合物进行了表征。

Six kinds of Nitro - 4' - Benzo - 15 - Crown - 5 (L) complexes having the stoichometric formula M(pic)2· 2L· xH2O (M=Mn, Cu, x=2; M =Co, Ni, Zn, Cd,x=4; pic=picrate anion) have been prepared in a 2 : 2: 1 (V/V/V) mixed solvent of MeCN, EtOH and H2O, and Characterized by EA、IR、UV and Molar conductance. It was found that the ligand with the hydrated transition metal picrate by hydrogen bonding of coordinating water molecules and all the complexes prepared are nonelectrolytes in acetone.