Four heterometallic coordination polymers of a macrocyclic oxamide with aromatic multicarboxylate ligands: Syntheses, crystal structures and magnetic properties

作者：Sun, Ya-Qiu^*; Xu, Yan-Yan; Wu, Lin; Zheng, Yan-Feng; Gao, Dong-Zhao; Zhang, Guo-Ying

来源：Polyhedron, 2015, 91: 1-9.

DOI：10.1016/j.poly.2015.02.019

• Coordination polymers
• Heterometallic complex
• Magnetism
• Macrocylic oxamide complex
• Solvothermal method

Four new coordination polymers, [Mn(CuL)(aiPt)] (1), [Ni(CuL)(aipt)(H2O)]center dot H2O (2), [Mn(NiL)(tpt)]center dot 1/4H(2)O (3) and [Mn(NiL)(atpt)] (4) (ML, H2L = 2, 3-dioxo-5, 6, 14, 15-dibenzo-1, 4, 8, 12-tetraazacyclo-pentadeca-7, 13-dien; H(2)aipt = 5-aminoisophthalic acid; H(2)tpt = terephthalic acid; H(2)aipt = 2-aminoterephthalic acid), have been synthesized by a solvothermal method and their structures are characterized by single-crystal X-ray diffraction. Complex 1 exhibits a 1D chain structure formed by Cu2Mn2 units connected via oxamide and 5-aminoisophthalate bridges, while complexes 2, 3 and 4 exhibit different 2D layered structures formed by Cu2Ni2 (2) and Mn2Ni2 (3-4) units, connected via oxamide and diverse carboxylate bridges. Magnetic studies demonstrate that antiferromagnetic interactions exist between the neighboring metal ions through the oxamide and/or carboxyl bridges in complexes 1-4.

• 出版日期2015-5-8
• 单位天津师范大学