Crystal structures and fluorescent properties of the first 2D and 3D cadmium(II) pyromellitate coordination polymers

被引：17

作者：

Sun, YQ ^{[1
]}

Zhang, J ^{[1
]}

Yang, GY ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Coordinat & Hydrothermal Chem Grp, State Key Lab Structur Chem, Fujian 350002, Peoples R China

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2004年 / 57卷 / 15期

基金：

中国国家自然科学基金;

关键词：

hydrothermal synthesis; crystal structure; 1,2,4,5-benzenetetracarboxylate; cadmium complexes;

D O I：

10.1080/00958970412331295200

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two novel cadmium polymeric complexes, [Cd-2(btec).6H(2)O](n) (1), and [Cd-2(btec)](n) (2) (H(4)btec = 1,2,4,5-benzenetetracarboxylic acid), were obtained by assembly of Cd(NO3)(2) . 4H(2)O and Cd(OH)(2) with H(4)btec at different pH values and characterized by elemental analysis, IR spectra, X-ray single-crystal diffraction, TGA and fluorescent spectra. Complex 1 crystallizes in the triclinic system with space group P (1) over bar, a=5.595(l),b=7.770(2),c=9.685(2)Angstrom,alpha=111.93(2),beta=101.78(2), gamma=98.28(2)degrees and complex 2 crystallizes in the monoclinic system with space group C2/m, a=6.588(2), b= 18.038(5), c=4.728(2)Angstrom, 0=116.49(1)degrees. Complex 1 contains a novel step-like 2D layered network and complex 2 possesses a 3D pillared-layered structure. These two complexes exhibit strong fluorescent emission bands at 363.5 and 486.5 nm (lambda(ex) = 215 nm) for complex 1, 386.5 nm (lambda(ex)= 335 nm) for complex 2 in the solid state at room temperature.

引用

页码：1299 / 1308

页数：10

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