Metal-Organic Niccolite: Synthesis, Structures, Phase Transition, and Magnetic Properties of [CH3NH2(CH2)(2)NH2CH3][M-2(HCOO)(6)] (M=divalent Mn, Fe, Co, Ni, Cu and Zn)

doi:10.1002/asia.201100290

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	Metal-Organic Niccolite: Synthesis, Structures, Phase Transition, and Magnetic Properties of [CH3NH2(CH2)(2)NH2CH3][M-2(HCOO)(6)] (M=divalent Mn, Fe, Co, Ni, Cu and Zn)
	Li, Meng-Yuan 1; Kurmoo, Mohamedally 2; Wang, Zhe-Ming 1; Gao, Song 1
刊名	CHEMISTRY-AN ASIAN JOURNAL
	2011-11-04
卷号	6 期号:11 页码:3084-3096
关键词	Magnetic Properties Metal-organic Frameworks Phase Transitions Template Synthesis X-ray Diffraction
ISSN号	1861-4728
DOI	10.1002/asia.201100290
英文摘要	We report the synthesis, crystal structures, thermal and magnetic characterizations of a family of metal-organic frameworks adopting the niccolite (NiAs) structure, [dmenH(2)(2+)] [M-2(HCOO)(6)(2-)] (dmen=N,N'-dimethylethylenediamine; M=divalent Mn, 1Mn; Fe, 2Fe; Co, 3Co; Ni, 4Ni; Cu, 5Cu; and Zn, 6Zn). The compounds could be synthesized by either a diffusion method or directly mixing reactants in methanol or methanol-water mixed solvents. The five members, 1Mn, 2Fe, 3Co, 4Ni, and 6Zn are iso-structural and crystallize in the trigonal space group P (3) over bar 1c, while 5Cu crystallizes in C2/c. In the structures, the octahedrally coordinated metal ions are connected by anti-anti formate bridges, thus forming the anionic NiAs-type frameworks of [M-2(HCOO)(6)(2-)], with dmenH(2)(2+) located in the cavities of the frameworks. Owing to the Jahn-Teller effect of the Cu2+ ion, the 3D framework of 5Cu consists of zigzag Cu-formate chains with Cu-OCHO-Cu connections through short basal Cu-O bonds, further linked by the long axial Cu-O bonds. 6Zn exhibits a phase transition probably as a result of the order-disorder transition of the dmenH(2)(2+) cation around 300 K, confirmed by differential scanning calorimetry and single crystal X-ray diffraction patterns under different temperatures. Magnetic investigation reveals that the four magnetic members, 1Mn, 2Fe, 3Co, and 4Ni, display spin-canted antiferromagnetism, with a Neel temperature of 8.6 K, 19.8 K, 16.4 K, and 33.7 K, respectively. The Mn, Fe, and Ni members show spin-flop transitions below 50 kOe. 2Fe possesses a large hysteresis loop with a large coercive field of 10.8 kOe. The Cu member, 5Cu, shows overall antiferromagnetism (both inter- and intra-chains) with low-dimensional characteristics.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000297420200031
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/72327]
专题	中国科学院化学研究所
通讯作者	Wang, Zhe-Ming
作者单位	1.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Univ Strasbourg, CNRS, Inst Chim, Lab DECOMET,UMR 7177, F-67000 Strasbourg, France
推荐引用方式 GB/T 7714	Li, Meng-Yuan,Kurmoo, Mohamedally,Wang, Zhe-Ming,et al. Metal-Organic Niccolite: Synthesis, Structures, Phase Transition, and Magnetic Properties of [CH3NH2(CH2)(2)NH2CH3][M-2(HCOO)(6)] (M=divalent Mn, Fe, Co, Ni, Cu and Zn)[J]. CHEMISTRY-AN ASIAN JOURNAL,2011,6(11):3084-3096.
APA	Li, Meng-Yuan,Kurmoo, Mohamedally,Wang, Zhe-Ming,&Gao, Song.(2011).Metal-Organic Niccolite: Synthesis, Structures, Phase Transition, and Magnetic Properties of [CH3NH2(CH2)(2)NH2CH3][M-2(HCOO)(6)] (M=divalent Mn, Fe, Co, Ni, Cu and Zn).CHEMISTRY-AN ASIAN JOURNAL,6(11),3084-3096.
MLA	Li, Meng-Yuan,et al."Metal-Organic Niccolite: Synthesis, Structures, Phase Transition, and Magnetic Properties of [CH3NH2(CH2)(2)NH2CH3][M-2(HCOO)(6)] (M=divalent Mn, Fe, Co, Ni, Cu and Zn)".CHEMISTRY-AN ASIAN JOURNAL 6.11(2011):3084-3096.