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Issue 39, 2014
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An alternative strategy to construct Fe(ii)-based MOFs with multifarious structures and magnetic behaviors

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Abstract

An alternative strategy using cyclopentadienyliron dicarbonyl dimer as a starting material has been applied to construct six new Fe(II)-based MOFs, formulated as [Fe2(Nic)4(μ-H2O)]·CH3CN (1), [Fe(PIP)(H2O)]·H2O (2), [Fe(Hbidc)(H2O)] (3), [Fe(Hbidc)] (4), [Fe(Py-3,4-BDC)(H2O)2]·H2O (5) and [Fe(Py-3,4-BDC)(H2O)2] (6) (HNic = nicotinic acid, H2PIP = 5-(pyridin-4-yl) isophthalic acid, H3bidc = benzimidazole-5,6-dicarboxylic acid and Py-3,4-H2BDC = 3,4-pyridinedicarboxylic acid). X-ray structural analysis reveals that 1 possesses a 3D framework, while the rest of the compounds are 2D layer structures which are further connected by hydrogen bonding into 3D supramolecular architectures. Magnetic analyses have been performed with the classical spin approximation, revealing that 2, 5 and 6 exhibit ferromagnetic interactions between Fe(II) ions, while 3 and 4 show antiferromagnetic interactions between Fe(II) centres. The successful preparation of compounds 1–6 may provide an alternative and useful approach for the synthesis of Fe(II)-based MOFs in the future.

Graphical abstract: An alternative strategy to construct Fe(ii)-based MOFs with multifarious structures and magnetic behaviors

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The article was received on 08 Jul 2014, accepted on 06 Aug 2014 and first published on 07 Aug 2014


Article type: Paper
DOI: 10.1039/C4CE01414F
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CrystEngComm, 2014,16, 9208-9215

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    An alternative strategy to construct Fe(II)-based MOFs with multifarious structures and magnetic behaviors

    Q. Li, C. Tian, H. Zhang, J. Qian and S. Du, CrystEngComm, 2014, 16, 9208
    DOI: 10.1039/C4CE01414F

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