Two-dimensional extended (4,4)-topological network constructed from Tetra-Ni-II-Substituted sandwich-type keggin polyoxometalate building blocks and Ni-II-organic cation bridges

	Two-dimensional extended (4,4)-topological network constructed from Tetra-Ni-II-Substituted sandwich-type keggin polyoxometalate building blocks and Ni-II-organic cation bridges
	J. W. Zhao ; B. Li ; S. T. Zheng ; G. Y. Yang
刊名	Crystal Growth & Design
	2007-12
卷号	7 期号:12 页码:2658-2664
关键词	transition-metal-complexes trivacant heteropolytungstate derivatives state coordination chemistry magnetic-properties crystal-structure hydrothermal synthesis polyoxomolybdate clusters dimeric polyoxoanions oxide clusters ground-state
ISSN号	1528-7483
中文摘要	Three novel inorganic-organic composite polyoxotungstates {[Ni(dap)(2)(H2O)](2)[Ni(dap)(2)](2)[Ni-4(Hdap)(2)(alpha-B-HSiW9O34)(2)]}center dot 7H(2)O (1), {[Ni(dap)(2)(H2O)](2)[Ni(dap)(2)](2)[Ni-4(Hdap)(2)(alpha-B-HGeW9O34)(2)]}center dot 6H(2)O (2), and {[Ni(dap)(2)(H2O)](2)[Ni(dap)(2)](2)[Ni-4(Hdap)(2)(alpha-B-PW9O34)(2)])center dot H2O (3) (dap = 1,2-diaminopropane) have been hydrothermally synthesized and characterized by IR spectra, optical diffuse reflection spectroscopy, elemental. analysis, thermogravimetric analysis, and single-crystal X-ray diffraction. Three polyoxotungstates all crystallize in the triclinic space group P (1) over bar, with a = 13.3613(4) angstrom, b = 13.9821(4) angstrom, c 17.0305(5) angstrom, alpha = 68.085(10)degrees, beta = 71.179(11)degrees, gamma = 87.876(14)degrees, Z = 1, R-1 = 0.0742, wR(2) = 0.1692 for 1, a = 13.338(3) angstrom, b = 13.978(3) angstrom c = 17.049(3) angstrom, alpha = 68.159(6)degrees, beta = 71.100(8)degrees, gamma = 87.683(9)degrees, Z = 1, R-1 = 0.0499, wR(2) = 0. 1061 for 2, and a = 13.3570(19) b 13.997(2) angstrom, c = 17.129(2) angstrom, alpha = 67.468(4)degrees, beta = 71.986(5)degrees, gamma = 88.698(6)degrees, Z = 1, R-1 = 0.0461, wR(2) = 0.1254 for 3. Three isostructural polyoxotungstates utilize the two-dimensional structures with inorganic-organic composite surfaces built up from tetra-Ni-II-substituted sandwich-type Keggin polyoxometalate building blocks and Ni-II-dap cation bridges, representing the first (4,4)-connected topological network in polyoxometalate chemistry. Magnetic susceptibility measurements indicate the occurrence of ferromagnetic coupling interactions within the Ni-II centers for 1 and 2.
语种	英语
公开日期	2013-04-01
内容类型	期刊论文
源URL	[http://ir.fjirsm.ac.cn/handle/350002/6909]
专题	福建物质结构研究所_中科院福建物质结构研究所_期刊论文
推荐引用方式 GB/T 7714	J. W. Zhao,B. Li,S. T. Zheng,et al. Two-dimensional extended (4,4)-topological network constructed from Tetra-Ni-II-Substituted sandwich-type keggin polyoxometalate building blocks and Ni-II-organic cation bridges[J]. Crystal Growth & Design,2007,7(12):2658-2664.
APA	J. W. Zhao,B. Li,S. T. Zheng,&G. Y. Yang.(2007).Two-dimensional extended (4,4)-topological network constructed from Tetra-Ni-II-Substituted sandwich-type keggin polyoxometalate building blocks and Ni-II-organic cation bridges.Crystal Growth & Design,7(12),2658-2664.
MLA	J. W. Zhao,et al."Two-dimensional extended (4,4)-topological network constructed from Tetra-Ni-II-Substituted sandwich-type keggin polyoxometalate building blocks and Ni-II-organic cation bridges".Crystal Growth & Design 7.12(2007):2658-2664.