Syntheses of Alkaline earth and lanthanide cryptates with pyridine-based group

被引：0

作者：

Hu Xuelei ^{[1
,2
]}

Li, Qiu ^{[1
]}

Zhong, Chen ^{[1
]}

Qimao, Huang ^{[1
]}

Pan Zhiquan ^{[1
]}

机构：

[1] Wuhan Inst Technol, Minist Educ, Key Lab Green Chem Proc, Wuhan 430073, Peoples R China

[2] Huazhong Univ Sci & Technol, Minist Educ, Key Lab Biomed Photon, Wuhan 430074, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2007年 / 25卷 / 06期

关键词：

alkaline earth metal; lanthanide; cryptate; synthesis; crystal structure; rare earths;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

New alkaline earth metal cryptates [ML](NO3)(2) center dot 2H(2)O (M =Ca2+, Sr2+, Ba2+; L = 1, 4, 12, 15, 18, 26, 3 1, 39, 42, 43, 44-undecaazapentacyclo-[ 13.13.13.1(6,10).1(20,24).1(33,37)]-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) center dot 2H(2)O with corresponding lanthanide ions; three lanthanide cryptates [LnL] (NO)(3) center dot 3H(2)O (Ln = Eu, Gd, Tb) were synthesized and characterized by physical methods. The crystal structure of the terbium cryptate [TbL] (NO)(3) center dot 3H(2)O was studied by X-ray analysis. The central atom was coordinated by three pyridyl and six innino nitrogen atoms and exhibited a distorted tricapped trigonal prismatic coordination geometry.

引用

页码：674 / 678

页数：5

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