A (3,6)-connected metal-organic framework consisting of chair-like {Fe-6} clusters and BTC linkers

作者:Zhang, Tian-Zhan; Zhang, Zhi-Ming*; Lu, Ying; Wang, En-Bo
来源:Journal of Coordination Chemistry, 2012, 65(1): 48-54.
DOI:10.1080/00958972.2011.640398

摘要

A 2-D framework composed of a chair-like {Fe-6} cluster and BTC linkers, [Fe-6(BTC)(2)(HCOO)(6)(DMF)(6)] (1, BTC = 1,3,5-benzenetricarboxylate), has been synthesized under solvothermal conditions and characterized by elemental analysis, infrared spectroscopy, thermal gravimetric analysis, and single-crystal X-ray diffraction analysis. The {Fe-6} cluster contains six iron ions and six formate ligands, with each formate coordinating with three iron ions to construct the hexa-nuclear iron wheel. The {Fe-6} wheels are further connected via BTC ligands resulting in the first example of a 2-D framework based on {Fe-6} clusters and BTC linkers. A magnetic study indicates that intramolecular antiferromagnetic interactions exist in the hexa-nuclear iron cluster.

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