Solvothermal synthesis, temperature-dependent structural study and magnetic characterization of a multipolydentate oxamate-based 2D coordination network
Résumé
A multi-polydentate N-substituted oxamate ligand bearing an additional carboxylato group has been successfully reacted in solvothermal conditions to form the 2D coordination network (TMA) 3 [CuMn(paba) 2 (OAc)]•8H 2 O (1). This coordination network displays a brick-wall type morphology with, thanks to the augmented connectivity of the ligand, a lower than usual metal ion nuclearity for the building sub-unit. Temperature-dependent structural studies indicate that the layered structure undergoes dehydration at 90°C and remain stable up to 200°C. Magnetic characterizations show that 1 behaves as a ferrimagnet, with a Curie temperature of 2.8 K.
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