Syntheses, structures and magnetic properties of Mn(II), Co(II) and Ni(II) metal-organic frameworks constructed from 1,3,5-benzenetricarboxylate and formate ligands

被引:49
作者
Fu, Ying [1 ]
Su, Jie [1 ]
Yang, Sihai [2 ]
Li, Guobao [1 ]
Liao, Fuhui [1 ]
Xiong, Ming [3 ]
Lin, Jianhua [1 ]
机构
[1] Peking Univ, BNLMS, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
[2] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England
[3] China Univ Geosci, Xray Lab, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
Metal-organic framework; Carboxylate ligands; Magnetic property; Nickel; Manganese; Cobalt; COORDINATION POLYMERS; CRYSTAL-STRUCTURE; POROUS SOLIDS; COMPLEXES; BEHAVIOR; ACID; DESIGN; MOLECULES; NETWORKS; MALEATE;
D O I
10.1016/j.ica.2009.11.019
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Three compounds, [(CH3)(2)NH2][M-3(BTC)(HCOO)(4)(H2O)]center dot H2O (M = Mn (1), Co (2), Ni (3), H3BTC = 1,3,5-benzenetricarboxylic acid), were synthesized under hydrothermal conditions and were characterized by single crystal and powder X-ray diffraction, IR spectra, elemental analysis, coupled TG-MS and magnetic measurements. Compounds 1-3 are isostructural analogues and crystallize in monoclinic space group P2(1)/c. Each metal ion in these compounds connects to six oxygen atoms to form a MO6 octahedron. Six MO6 octahedra link to each other to form a corner-shared hexameric M-6 cluster, which is linked by BTC ligands to form two-dimensional layers. The two-dimensional layers are further connected by formic ions to form a three-dimensional network with channels, where (CH3)(2)NH2+ ions and water molecular are located. Magnetic measurements indicate that anti-ferromagnetic ordering occurs at low temperature for these compounds. (C) 2009 Elsevier B. V. All rights reserved.
引用
收藏
页码:645 / 652
页数:8
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