A three-dimensional twofold interpenetrated cobalt(II) MOF containing a flexible carboxylate-based ligand: synthesis, structure and magnetic properties

作者：An, Yan-Yan; Lu, Li-Ping^*; Zhu, Miao-Li^*

来源：Acta Crystallographica Section C-Structural Chemistry, 2018, 74(Pt 4): 418-+.

DOI：10.1107/S205322961800325X

• twofold interpenetrated coordination polymer
• three-dimensional coordination polymer
• topological analysis
• 5-[(4-carboxy-phenoxy)methyl]isophthalic acid
• cobalt(II)
• MOF
• metal-organic framework
• PXRD
• crystal structure
• magnetic properties

The design and synthesis of coordination polymers (CPs) have attracted much interest due to the intriguing diversity of their architectures and topologies. The functional solid catena-poly[mu(2)-aqua-triaqua{mu(4)-5-[4-carboxyphenoxy)methyl]benzene-1,3-dicarboxylato}{mu(3)-5-[4-carboxyphenoxy) methyl]benzene-1,3-dicarboxylato}dicobalt(II)], [Co-2(C16H10O7)(2)(H2O)(4)](n) or [Co-2(HL)(2)(mu(2)-H2O)(H2O)(3)](n), was synthesized successfully by self-assembly of Co-II ions with 5-[(4-carboxyphenoxy)methyl]isophthalic acid (H3L). The title compound was obtained under hydrothermal conditions and exhibits a twofold interpenetrated three-dimensional skeleton with hms 3,5-conn topology according to the cluster representation for valence-bonded metal-organic frameworks (MOFs). It has been characterized by single-crystal X-ray diffraction, IR spectroscopy, powder X-ray diffraction (PXRD), thermogravimetric analysis and susceptibility measurements. The antiferromagnetic coupling between adjacent Co-II centres occurs via superexchange through the ligands.

• 出版日期2018-4
• 单位山西大学