Solvothermal synthesis, temperature-dependent structural study and magnetic characterization of a multipolydentate oxamate-based 2D coordination network

Ang Li (1, 2) , Lise-Marie Chamoreau (1, 2) , Benoît Baptiste (3) , Ludovic Delbes (3) , Yanling Li (1, 2) , Francesc Lloret (4) , Yves Journaux (1, 2) , Laurent Lisnard (1, 2)

1 IPCM - Institut Parisien de Chimie Moléculaire
2 ERMMES - Equipe de Recherche en Matériaux Moléculaires et Spectroscopies
3 IMPMC - Institut de minéralogie, de physique des matériaux et de cosmochimie
4 ICMol - Instituto de Ciencia Molecular

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.

Domaines: Chimie; Chimie de coordination; Chimie inorganique

Ang Li, Lise-Marie Chamoreau, Benoît Baptiste, Ludovic Delbes, Yanling Li, et al.. Solvothermal synthesis, temperature-dependent structural study and magnetic characterization of a multipolydentate oxamate-based 2D coordination network. Crystal Growth & Design, 2022, ⟨10.1021/acs.cgd.2c01060⟩. ⟨hal-03836436⟩