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本工作以12-冠-4、15-冠-5、18-冠-6为配体合成了过渡金属Cr~(3+)、Fe~(3+)、Mn~(2+)、Co~(2+)、Ni~(2+)、CO~(2+)的硝酸盐和氯化物两个系列的络合物,共26。个对这26种络合物进行了红外、拉曼光谱的测定。光谱中,冠醚的OC—O—C伸缩振动、环弯曲、“环呼吸”振动以及CH_2面内摇摆振动在络合物形成后出现了规律性变化。过渡金属络合物的特征吸收在400—200cm~(-1)区域。光谱数据表明,NO_3~-、Cl~-对络合物的形成无影响,但对络合
In this work, the transition metal Cr3 +, Fe3 +, Mn2 +, Co3 + and Cr3 + were synthesized by using 12-crown-4,15-crown-5,18- (2 +), Ni ~ (2 +), CO ~ (2+) nitrate and chloride two series of complexes, a total of 26. The 26 complexes were measured by infrared and Raman spectroscopy. In the spectra, the OC-O-C stretching vibration, ring bending, ring breathing vibration and in-plane oscillating vibration of crown ether changed regularly after complex formation. Transition metal complexes are characterized by absorption in the region of 400-200 cm -1. The spectral data showed that NO_3 ~ - and Cl ~ - had no effect on the formation of complexes, but the complexation