A New Dinuclear Gadolinium Complex Constructed from p-Phenylenediamine-N,N,N′,N′-tetraacetic Acid and in situ Generated Oxalate

被引：1

作者：

于方永

郝志峰

李海峰

胡升

机构：

[1] FacultyofChemicalEngineeringandLightIndustry,GuangdongUniversityofTechnology

来源：

结构化学 | 2012年 / 31卷 / 09期

关键词：

Gd(Ⅲ) complex; crystal structure; p-phenylenediamine-N; N; N′; N′-tetraacetic acid; oxalate;

D O I：

暂无

中图分类号：

O627.8 [第Ⅷ族元素有机化合物];

学科分类号：

070303 ; 081704 ;

摘要：

Routine solution reaction of Gd3+ and p-phenylenediamine-N,N,N′,N′-tetraacetic acid (p-PhDTA) yields a dinuclear complex [Gd2(ox)(p-PhDTA)2(H2O)10]·6H2O (ox = oxalate), which was characterized by single-crystal X-ray diffraction (MoKα radiation, = 0.71073), elemental analysis and IR. This complex crystallizes in the monoclinic system, space group P21/n with a = 10.2522(8), b = 10.0053(8), c = 23.8834(18), = 99.1080(10)°, V = 2419.0(3)3, Z = 2, Mr = 1367.32, Dc = 1.877 g/cm3, F(000) = 1368, = 2.830 mm-1, the final R = 0.0337 and wR = 0.0794 for 4747 observed reflections (I > 2 (I)). The exo-tetradentate oxalate ligand, generated in situ from the oxidative coupling of methanol, is incorporated to construct a dinuclear Gd2(ox)2 unit decorated with p-PhDTA ligands on the two sides with a monodentate coordination mode. The dinuclear molecules are further connected by the lattice water molecules to form a three-dimen- sional hydrogen network.

引用

页码：1315 / 1321

页数：7

共 5 条

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