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

A rare lanthanide metal-organic framework (Ln-MOFs) based on Nd(III) binuclear nodes, with formula {[Nd-2(H2O)(3)(FDA)(3)(CH3OH)]center dot CH3OH}(n) (1) (H(2)FDA = 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)(4.6(2))(2)(4(2).5(4).6(2).7(2))(2)(5(2).6(6).7(4).9(2).10). Moreover, the near-infrared (NIR) luminescence of 1 based on Nd(III) and H(2)FDA were investigated in the solid state at room temperature for the first time. (C) 2016 Elsevier B.V. All rights reserved.