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合成了两个新的双氯桥联的同双核配合物,M_2(BZA)_2Cl_P·xH_2O(BZA=苯甲酰丙酮烯醇式阴离子,M=Ni,x=1;M=Zn,x=2),通过元素分析、红外光谱,固体反射光谱、磁化率测定对配合物进行了表征,测定了Ni(Ⅱ)配合物的变温磁化率(4-300K),其数值用最小二乘法与从自旋Hamiltonian算符(?)=-2J(?)_1·(?)_2导出的磁化率理论曲线很好拟合.求得交换积分J=1.36cm~(-1),表明Ni(Ⅱ)-Ni(Ⅱ)之间有较弱的反铁磁自旋相互作用.通过对两个配合物的TG-DTA-DTG分析及其对部分热解中间体的元素分析和红外光谱检测结果提出了它们的热分解机理.
Two new bis-chloro-bridged dinuclear complexes were synthesized, M_2 (BZA) _2Cl_P · xH_2O (BZA = benzoylacetone enolate anion, M = Ni, x = 1; M = Zn, x = ), The complexes were characterized by elemental analysis, IR, IR spectra and magnetic susceptibility. The temperature-dependent magnetic susceptibility (4-300K) of Ni (Ⅱ) The theoretical curve of the susceptibility derived from the spin Hamiltonian (-) = - 2J (?) _1 · (?) _2 is fit well and the exchange integral J = 1.36cm -1 is obtained, Ni (Ⅱ) has weak anti-ferromagnetic spin interaction between the two complexes.Through TG-DTA-DTG analysis of two complexes and their pyrolysis of the intermediate elemental analysis and infrared spectroscopy results of their proposed Thermal decomposition mechanism.