希土异硫氰酸盐与双苯乙烯-廿四-冠-八配合物的合成和性质研究

希土异硫氰酸盐与双苯乙烯-廿四-冠-八配合物的合成和性质研究 SYNTHESIS AND PROPERTIES OF COMPLEXES OF THE RARE EARTH（Ⅲ）ISOTHIOCYANATE WITH 2,3,14,15-TETRAPHENYL-1,4,7,10,13,16,19,22-OCTAOXA-CYCLOTETRACOSA-2,14-DIENE 万婕 1 first-author 邵学俊 1 孙文力 1 娄润和 1 武汉大学化学系 武汉大学化学系 合成了不饱和冠醚双苯乙烯-廿四-冠-八与希土异硫氰酸盐的五种新固体配合物.对配合物进行了元素分析、红外光谱、紫外光谱、差热分析和摩尔电导测定.紫外光谱研究表明,配合物的双苯乙烯吸收峰较配体有较大程度紫移,且紫移程度与摩尔吸光系数的减少存在着平行关系. Five new complexes of titled unsaturated crown ether with the rare earth （Ⅲ） isothiocyanates have been prepared in acetonitrile. All of complexes have been characterized by elemental analyses, molar conductance, IR,UV spectra and DTA,TG. The experiment results indicate that the complexes are nonelectrolytes in acetonitrile; the metal ion in the complexes are attached through the oxygen; The UV absorption band near 292nm,characteristic of diphenyl ethylene, showed a hypsochromic shift and decrease of its absorbance, There seems to be a parallel relationship between the hypsochromic shift and the decrease of absorbance. 希土异硫氰酸盐 冠醚 配合物 the rare earth isothiocyanate crown ether complex O614.33 国家自然科学基金资助的课题 1993-01-01 2021-04-01 1