摘要
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.
出处
《武汉大学学报（自然科学版）》
CSCD
1993年第1期67-71,共5页
Journal of Wuhan University(Natural Science Edition)
基金
国家自然科学基金资助的课题
关键词
冠醚
络合物
稀土
硫氰酸盐
the rare earth isothiocyanate
crown ether
complex
