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合成了两种新的离子对电荷转移配合物 [NO2 Py]x[Co(mnt) 2 ],(NO2 Py =1 (4 nitrobenzyl)pyridinium ;mnt=maleonitriledithiolate;x=1or2时分别对应配合物 2和 1) ,并用元素分析和红外光谱、电喷雾质谱和固体反射电子光谱等谱学方法对两种配合物进行了表征。两种配合物在 77K到 30 0K范围内的变温磁化率结果表明 ,配合物 2是抗磁性物质 ,经Pascal′s常数校正后的配合物 1的磁化率遵循改进的Bleaney Bowers方程 ,实验值和理论计算值能很好的吻合 ,非线性最小平方二乘法拟合所得的最佳拟合参数为 :g =2 392 ,2J/k=5 9K和θ=- 4 9K ,一致性因子R=7 2 0 × 10 -9(R=∑(χobsi - χcalcdi ) 2 / ∑(χobsi ) 2 )。
Two novel ion-pair charge-transfer complexes [NO2Py] x [Co (mnt) 2] and (n2Prob = 1 (4nitrobenzyl) pyridinium 1). The two complexes were characterized by elemental analysis and IR spectra, electrospray ionization mass spectrometry and solid-state reflection electron spectroscopy. The results of the temperature-dependent susceptibility of the two complexes in the range of 77K to 300K show that the complex 2 is a diamagnetic material and the magnetic susceptibility of the complex 1 after Pascal’s constant correction follows the modified Bleaney Bowers equation, the experimental value and The theoretical calculated values are in good agreement. The best fit parameters obtained by the nonlinear least square method are as follows: g = 2 392, 2J / k = 59K and θ = -49K, the concordance factor R = 7 2 0 × 10 -9 (R = Σ (χobsi - χcalcdi) 2 / Σ (χobsi) 2).