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以水杨醛缩对甲苯胺(HL)为配体合成了单核水杨醛缩对甲苯胺钴(Ⅲ)配合物CoL2Cl。通过X-射线单晶衍射、荧光光谱进行了表征。该配合物晶体属单斜晶系,P21/n空间群,晶胞参数:a=0.862 8(6)nm,b=0.180 35(11)nm,c=0.164 30(11)nm,α=γ=90°,β=103.593(13)°,V=2.485(3)nm3,Z=4,Dc=1.376 Mg/m3,F(000)=1 064,μ=0.826mm-1,并得到了CoL2Cl的原子坐标、等效温度因子、键长、键角和扭转角等数据。根据测试数据,分析了CoL2Cl的结构特点和合成机理。钴离子位于变形四面体的中心,分别与2个席夫碱、1个N原子和2个氧原子、1个Cl-形成配位键。配合物分子通过π-π堆积构成了三维网状结构。荧光光谱表明,配合物金属离子对配体π-π*跃迁引起的荧光发射峰有较大的影响。
The mononuclear salicylaldehyde-p-toluidine cobalt (Ⅲ) complex CoL2Cl was synthesized from salicylaldehyde-p-toluidine (HL). Characterization by X-ray single crystal diffraction, fluorescence spectroscopy. The complex crystal belongs to the monoclinic space group P21 / n with unit cell parameters of a = 0.862 8 (6) nm, b = 0.180 35 (11) nm and c = 0.164 30 = 90 °, β = 103.593 (13) °, V = 2.485 (3) nm3, Z = 4, Dc = 1.376 Mg / m3, F (000) = 1 064, μ = 0.826mm-1 and CoL2Cl Atomic coordinates, equivalent temperature factor, bond length, bond angle and twist angle and other data. According to the test data, the structural characteristics and synthesis mechanism of CoL2Cl were analyzed. Cobalt ions are located in the center of the deformed tetrahedron and form coordination bonds with two Schiff bases, one N atom, two oxygen atoms and one Cl- respectively. Complex molecules formed by π-π stacking three-dimensional network structure. Fluorescence spectra show that the complex metal ions have a great influence on the fluorescence emission peak caused by π-π * transition of ligand.