An antiferromagnetic metal-organic framework with high symmetry octanuclear Mn8(μ4-O)3(COO)12 secondary building units

作者:Xie, Ya-Bo; Zheng, Hai-Yang; Yang, Fan; Wang, Bin; Zhao, Jiongpeng; Yang, Hui*; Li, Jian-Rong
来源:Journal of Coordination Chemistry, 2014, 67(15): 2606-2614.
DOI:10.1080/00958972.2014.950255

摘要

A new antiferromagnetic metal-organic framework, {[(CH3)(2)NH2](2)[Mn-8(mu(4)-O)(3)(thb)(6)(solvent)(6)]}(n) (thb = 2,5-thiophenedicarboxylate) with octanuclear Mn-8(mu(4)-O)(3)(COO)(12) clusters as secondary building unit was synthesized and characterized, which has a pcu network topology when considering the Mn-8 cluster as a 6-connected node and each two double-linking thb ligands as a linker. @@@ A new antiferromagnetic 3-D metal-organic framework {[(CH3)(2)NH2](2)[Mn-8(mu(4)-O)(3)(thb)(6)(solvent)(6)]}(n) (1, thb = 2,5-thiophenedicarboxylate) with octanuclear Mn-8(mu(4)-O)(3)(COO)(12) secondary building unit (SBU) has been solvothermally synthesized and characterized by single-crystal X-ray diffraction, thermogravimetric analysis, and infrared spectroscopy. Considering this Mn-8 SBU as a 6-connected node, the overall framework of 1 has a pcu topology. It is interesting that the high symmetry Mn cluster shows a double-linked connection between two SBUs and exhibits an antiferromagnetic property.