摘要
首次合成了五种新型希土（Ｅｕ３＋，Ｔｂ３＋，Ｇｄ３＋，Ｓｍ３＋，Ｄｙ３＋）配合物。配体为带有喹啉环的４羟基７三氟甲基３喹啉基甲酸乙酯。并用元素分析、红外光谱和热分析方法确定了配合物的组成。通过测定钆配合物的低温磷光光谱表明４羟基７三氟甲基３喹啉基甲酸乙酯的三重态能级为２２０００ｃｍ－１。配合物的光物理性质表明配体的三重态能级适于希土Ｅｕ３＋，Ｓｍ３＋，Ｄｙ３＋和Ｔｂ３＋，特别是Ｔｂ３＋的发光。
Five nove rare earth (Eu 3+ , Tb 3+ , Gd 3+ , Sm 3+ and Dy 3+ ) complexes with ethyl 4 hydroxy 7 trifluoromethyl 3 quinolinecarboxylate which contains one quinoline cycle were synthesized and characterized by elemental analysis, IR spectrum and thermal analysis The triplet state energy of ethyl 4 hydroxy 7 trifluoromethyl 3 quinolinecarboxylate was determined to be 22000 cm -1 with the measurement of low temperature phosphorescence spectrum of corresponding gadolinium complex The photophysical properties of these complexes indicated that the triplet state energy of the ligand is suitable for the luminescence of Eu 3+ , Sm 3+ , Dy 3+ and Tb 3+ , especially of Tb 3+
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
1998年第4期407-411,共5页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金
中科院院长基金
关键词
稀土
发光
铕
钐
配合物
喹啉基甲酸乙酯
镝
铽
rare earth complexes ethyl 4 hydroxyl 7 trifluoromethyl 3 quinolinecarboxylate photophysical properties
