Syntheses of Alkaline Earth and Lanthanide Cryptates with Pyridine-Based Group

稀土学报(英文版), 2007, 25(6): 674-678.

^1, , ^2, , ^3, , ^4, , ^5,

1.The Key Laboratory of Biomedical Photonics of Ministry of Education,Huazhong University of Science and Technology,Wuhan 430074,China;The Key Laboratory of Biomedical Photonics of Ministry of Education,Huazhong University of Science and Technology,Wuhhan 430074,China

2.The Key Laboratory of Biomedical Photonics of Ministry of Education,Huazhong University of Science and Technology,Wuhan 430074,China

3.The Key Laboratory of Biomedical Photonics of Ministry of Education,Huazhong University of Science and Technology,Wuhan 430074,China

4.The Key Laboratory of Biomedical Photonics of Ministry of Education,Huazhong University of Science and Technology,Wuhan 430074,China

5.The Key Laboratory of Biomedical Photonics of Ministry of Education,Huazhong University of Science and Technology,Wuhan 430074,China

基金项目: 湖北省自然科学基金(2005ABA021) 国家自然科学基金(20671075) 国家博士后科学基金(20060390858)

Syntheses of Alkaline Earth and Lanthanide Cryptates with Pyridine-Based Group

Hu Xuelei ^1, , Qiu Li ^2, , Chen Zhong ^3, , Huang Qimao ^4, , Pan Zhiquan ^5,

2.The Key Laboratory of Biomedical Photonics of Ministry of Education,Huazhong University of Science and Technology,Wuhan 430074,China

3.The Key Laboratory of Biomedical Photonics of Ministry of Education,Huazhong University of Science and Technology,Wuhan 430074,China

4.The Key Laboratory of Biomedical Photonics of Ministry of Education,Huazhong University of Science and Technology,Wuhan 430074,China

5.The Key Laboratory of Biomedical Photonics of Ministry of Education,Huazhong University of Science and Technology,Wuhan 430074,China

Keywords： alkaline earth metal

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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Syntheses of Alkaline Earth and Lanthanide Cryptates with Pyridine-Based Group

参考文献