A novel 3D Nd(III) metal-organic frameworks based on furan-2,5-dicarboxylic acid exhibits new topology and rare near-infrared luminescence property

Abstract A rare lanthanide metal-organic framework (Ln-MOFs) based on Nd(III) binuclear nodes, with formula {[Nd2(H2O)3(FDA)3(CH3OH)]⋅ CH3OH}n (1) (H2FDA = furan-2,5-dicarboxylic acid), was obtained under solvothermal conditions and characterized by single crystal X-ray diffraction, thermogravimetric analysis and luminescent measurements. 1 has two type of Nd2 binuclear clusters stabilized by carboxylic groups and exhibits a new topology structure. It is a four nodes 3,3,5,6-connected net with the point symbols of (4.5.6)2(4.62)2(42.54.62.72)2(52.66.74.92.10). Moreover, the near-infrared (NIR) luminescence of 1 based on Nd(III) and H2FDA were investigated in the solid state at room temperature for the first time.