摘要:
本文合成了含水杨醛缩对硝基苯甲酰腙(简写为H2L)的钒酰配合物VOL(CH3OH)(CH3O) (1, C16H16N3O7V, Mr = 413.26)和钴配合物[CoL(C5H5N)3](NO3(C5H5N (2, C34H29N8O7Co, Mr = 720.58). 配合物1属单斜晶系, 空间群为P21/c, a = 7.3253(3), b = 18.8237(9), c = 12.9014(5)(A), β = 91.672(1)°, V = 1778.2(1) (A)3, Z = 4, F(000) = 848, μ(MoKα) = 0.603 mm-1, R = 0.0470, wR = 0.1312.配合物2属单斜晶系, 空间群为P21/c, a = 11.4196(8), b = 17.157(1), c = 17.081(1)(A), β = 96.8233(9) °, V = 3323.0(4) (A)3, Z = 4, F(000) = 1488, μ(MoKα) = 0.578 mm-1, R = 0.0455, wR = 0.1311.在配合物1中, 钒(V)原子由周围的酰氧基原子、配体L2-的3个配位原子, 去质子化甲醇的甲氧基原子和配位甲醇的氧原子配位, 形成畸变的VO(ONO)(O)(O)八面体配位构型.晶体内每2个分子间通过氢键作用缔合成中心对称的分子对, O-H…N氢键键长为2.861(4) (A), 键角163.20(.晶体中存在着弱(-(共轭作用.在配合物2中, 钴(Ⅲ)原子由1个L2-的3个配位原子和3个配位吡啶分子的3个氮原子配位, 呈N4O2八面体配位构型.