Synthesis, crystal structures, and magnetic properties of two three-dimensional octacyanotungstate(IV)-based bimetallic frameworks with 4,4'-bipyridine dioxide (4,4'-dpdo)

doi:10.1007/s11426-009-0050-y

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	Synthesis, crystal structures, and magnetic properties of two three-dimensional octacyanotungstate(IV)-based bimetallic frameworks with 4,4'-bipyridine dioxide (4,4'-dpdo)
	Yuan Mei ; Gao Song 1; Zhao Fei ; Zhang Wen ; Wang ZheMing
刊名	SCIENCE IN CHINA SERIES B-CHEMISTRY
	2009-03-01
卷号	52 期号:3 页码:266-275
关键词	Octacyanometalates Coordination Polymer Cavities Magnetism 4 4 '-bipyridine Dioxide
ISSN号	1006-9291
DOI	10.1007/s11426-009-0050-y
英文摘要	The reaction of [HN(n-C(4)H(9))(3)](3)[W(V) (CN)(8)]center dot 4H(2)O, 4,4'-bipyridine dioxide(4,4'-dpdo), and MnCl(2)center dot 4H(2)O or CuCl(2)center dot 2H(2)O gives two new three-dimensional octacyanometalate-based bimetallic assemblies, {[Mn(2) (4,4'-dpdo)(H(2)O)(4)] [W(IV) (CN)(8)]{center dot 6H(2)O (1) and {[Cu(2)(4,4'-dpdo)(H(2)O)][W(CN)(8)]{center dot CH(3)OH center dot H(2)O (2). Compound 1 crystallizes in the orthorhombic system, space group P2(1)2(1)2 with cell constants alpha=10.397(2) A..., b=11.321(2) A..., c=12.295(3) A... and Z=2, whereas 2 crystallizes in the monoclinic system, space group P2(1)/c with cell constants a=13.038(3) A..., b=13.784(3) A..., c=13.225(3) A..., beta=93.44(3)A degrees and Z=4. In complex 1, each [W(IV) (CN)(8)](4-) unit with a square antiprismatic geometry is connected to four Mn(2) dimers through four bridging CN(-) ions forming wavelike alternating-W-Mn(2)-W-Mn2- layers, which are further linked through 4,4'-dpdo ligands coordinated to the Mn ions into a three-dimensional open framework. In complex 2, each [W(IV) (CN)(8)](4-) ion still adopts a square antiprismatic geometry, whereas it bonds to seven copper ions through seven CN(-) ions leading to cage-like undulate layers further bridged by 4,4'-dpdo ligands into a three-dimensional network. Due to the bridging role of the long rigid 4,4'-dpdo ligand, there exist plenty of large cavities in the open frameworks of complexes 1 and 2 occupied by solvent clusters containing H(2)O or CH(3)OH molecules. To our knowledge, it is noted that 4,4'-dpdo displays a mu-4,4,4',4' mode, which was first experimentally observed, although predicted before. Magnetic studies show that complex 1 displays an antiferromagnetic coupling between Mn(II) ions, while complex 2 exhibits a weak ferromagnetic interaction between Cu(II) ions.
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000264886800004
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/67561]
专题	中国科学院化学研究所
通讯作者	Gao Song
作者单位	1.Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Yuan Mei,Gao Song,Zhao Fei,et al. Synthesis, crystal structures, and magnetic properties of two three-dimensional octacyanotungstate(IV)-based bimetallic frameworks with 4,4'-bipyridine dioxide (4,4'-dpdo)[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,2009,52(3):266-275.
APA	Yuan Mei,Gao Song,Zhao Fei,Zhang Wen,&Wang ZheMing.(2009).Synthesis, crystal structures, and magnetic properties of two three-dimensional octacyanotungstate(IV)-based bimetallic frameworks with 4,4'-bipyridine dioxide (4,4'-dpdo).SCIENCE IN CHINA SERIES B-CHEMISTRY,52(3),266-275.
MLA	Yuan Mei,et al."Synthesis, crystal structures, and magnetic properties of two three-dimensional octacyanotungstate(IV)-based bimetallic frameworks with 4,4'-bipyridine dioxide (4,4'-dpdo)".SCIENCE IN CHINA SERIES B-CHEMISTRY 52.3(2009):266-275.