Syntheses and crystal structures of gadolinium and europium complexes of AAZTA analogues

Sengar RS; Nigam A; Geib SJ; Wiener EC

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Syntheses and crystal structures of gadolinium and europium complexes of AAZTA analogues

机译：AAZTA类似物的and和and配合物的合成和晶体结构

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Modified 6-amino-6-methylperhydro-1,4-diazepinetetraacetic acid (AAZTA) ligands with a hydroxyl arm have been synthesized and characterized. The crystal structures of its lanthanide complexes, determined by single crystal X-ray crystallography, show centrosymmetric nonacoordinated dimeric M2L2 forms where one carboxylate group from each ligand forms a bridge between two metal centers. Each metal center is coordinated with one inner sphere water molecule. The hydroxyl arm does not interfere in the coordination environment of the metal and therefore acts as a good anchor for attaching other functional motifs.

机译：合成和表征了具有羟基臂的改性6-氨基-6-甲基过氢-1,4-二氮杂四乙酸（AAZTA）配体。通过单晶X射线晶体学确定的其镧系元素络合物的晶体结构显示出中心对称的非配位二聚体M2L2形式，其中每个配体的一个羧酸根基团在两个金属中心之间形成桥。每个金属中心都与一个内层水分子协调。羟基臂不会干扰金属的配位环境，因此可作为附着其他功能性基序的良好锚点。

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《Polyhedron: The International Journal for Inorganic and Organometallic Chemistry》 |2009年第8期|共7页
作者
Sengar RS; Nigam A; Geib SJ; Wiener EC;
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原文格式 PDF
正文语种 eng
中图分类无机化学;
关键词
Gadolinium complex; Europium complex; MRI contrast agents; Crystal structure; AAZTA ligands;

机译：d配合物complex配合物MRI造影剂晶体结构AAZTA配体;

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1. Syntheses and crystal structures of gadolinium and europium complexes of AAZTA analogues [J] . Sengar RS, Nigam A, Geib SJ, Polyhedron: The International Journal for Inorganic and Organometallic Chemistry . 2009,第8期

机译：AAZTA类似物的and和and配合物的合成和晶体结构
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Syntheses and crystal structures of gadolinium and europium complexes of AAZTA analogues

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