Novel luminescent lanthanide(III) diphosphonates with rarely observed topology

	Novel luminescent lanthanide(III) diphosphonates with rarely observed topology
	S. F. Tang ; J. L. Song ; X. L. Li ; J. G. Mao
刊名	Crystal Growth & Design
	2007-02
卷号	7 期号:2 页码:360-366
关键词	initio structure determination frameworks mil-n crystal-structures hydrothermal synthesis structural characterization carboxylate-phosphonates metal phosphonates network structure pendant arms solid-state
ISSN号	1528-7483
中文摘要	Hydrothermal reactions of lanthanide(III) salts with N-(2-pyridyl)-aminomethane-1,1-diphosphonic acid (H(4)L) led to five new lanthanide(III) phosphonates, namely, La(4)(H(2)L)(4)(H(3)L)(4)(H(2)O)(4)center dot 20H(2)O (1) and Ln(H(2)L)(H(3)L)center dot 4H(2)O (Ln = Eu (2), Gd (3), Dy (4), and Er (5)). Compound 1 features a 3D framework with rarely observed topology in which each lanthanum(III) ion is eight-coordinated by seven phosphonic oxygen atoms from four phosphonate ligands and an aqua ligand. It possesses two types of tunnels running parallel to the a-axis, one formed by five La(III) ions and five organic moieties, the other by seven La(III) ions and seven organic moieties. It shows noninterpenetrated three-connected topology. Compounds 2-5 are isostructural and exhibit one-dimensional chain structures in which each pair of Ln(III) ions are bridged by two and four phosphonate groups, alternatively. Compound 2 exhibits emission bands of the phosphonate ligand and the europium(III) ion in the visible region under 360 nm excitation, with a Eu ((5)D(0)) lifetime of 1.2 ms. Compound 3 displays a very broad ligand-centered emission band (lambda(max) = 412 nm) in the blue light region. Compound 5 is a luminescent material in the near-IR region.
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/350002/6633]
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	S. F. Tang,J. L. Song,X. L. Li,et al. Novel luminescent lanthanide(III) diphosphonates with rarely observed topology[J]. Crystal Growth & Design,2007,7(2):360-366.
APA	S. F. Tang,J. L. Song,X. L. Li,&J. G. Mao.(2007).Novel luminescent lanthanide(III) diphosphonates with rarely observed topology.Crystal Growth & Design,7(2),360-366.
MLA	S. F. Tang,et al."Novel luminescent lanthanide(III) diphosphonates with rarely observed topology".Crystal Growth & Design 7.2(2007):360-366.