Construction of CuII Cluster-Based Magnetic Metal–Organic Framework Derived from a V-Shaped Aromatic Dicarboxylate Ligand

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In our efforts towards rational design and systematic synthesis of cluster-based metal–organic frameworks, a new CuII coordination framework derived from the V-shaped aromatic dicarboxylate with formula [Cu4(µ4-O)(L)3]∞ (1), H2L = (4-phenyl)-2,6-bis(4-carboxyphenyl)pyridine) was synthesised under hydrothermal conditions and structurally characterised by single-crystal X-ray diffraction, powder X-ray diffraction, elemental analysis, and infrared spectroscopy. Structure analysis shows that complex 1 has a three-dimensional framework based on [Cu8] cluster with 8-connected bcu topology. Magnetic investigation suggests that anti-ferromagnetic coupling exists between CuII ions in the [Cu8] cluster.