Syntheses of Alkaline Earth and Lanthanide Cryptates with Pyridine-Based Group
来源期刊：Journal of Rare Earths2007年第6期
论文作者：胡学雷 邱立 陈中 黄齐茂 潘志权
文章页码：674 - 678
摘 要：New alkaline earth metal cryptates [ML]（NO3）2·2H2O （M=Ca2+, Sr2+, Ba2+; L=1, 4, 12, 15, 18, 26, 31, 39, 42, 43, 44-undecaazapentacyclo-[13.13.13.16, 10.120, 24.133, 37]-tetratetraconta -4, 6, 8, 10（44）, 11, 18, 20, 22, 24（43）, 25, 31, 33, 35, 37（42）, 38-pentadecaene） were synthesized by [2+3] template condensation of tris（2-aminoethyl） amine with 2, 6-diformylpyridine, and then by transmetallation reactions of the calcium cryptate [CaL]（NO3）2·2H2O with corresponding lanthanide ions; three lanthanide cryptates [LnL]（NO）3·3H2O （Ln=Eu, Gd, Tb） were synthesized and characterized by physical methods. The crystal structure of the terbium cryptate [TbL]（NO）3·3H2O was studied by X-ray analysis. The central atom was coordinated by three pyridyl and six imino nitrogen atoms and exhibited a distorted tricapped trigonal prismatic coordination geometry.
胡学雷，邱立，陈中，黄齐茂，潘志权
摘 要：New alkaline earth metal cryptates [ML]（NO3）2·2H2O （M=Ca2+, Sr2+, Ba2+; L=1, 4, 12, 15, 18, 26, 31, 39, 42, 43, 44-undecaazapentacyclo-[13.13.13.16, 10.120, 24.133, 37]-tetratetraconta -4, 6, 8, 10（44）, 11, 18, 20, 22, 24（43）, 25, 31, 33, 35, 37（42）, 38-pentadecaene） were synthesized by [2+3] template condensation of tris（2-aminoethyl） amine with 2, 6-diformylpyridine, and then by transmetallation reactions of the calcium cryptate [CaL]（NO3）2·2H2O with corresponding lanthanide ions; three lanthanide cryptates [LnL]（NO）3·3H2O （Ln=Eu, Gd, Tb） were synthesized and characterized by physical methods. The crystal structure of the terbium cryptate [TbL]（NO）3·3H2O was studied by X-ray analysis. The central atom was coordinated by three pyridyl and six imino nitrogen atoms and exhibited a distorted tricapped trigonal prismatic coordination geometry.
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