Synthesis, Structures and Properties of Two New Three-dimensional Ce(III) Coordination Polymers with 2,2'-bipyridine-4,4'-dicarboxylic Acid

摘要

Two new Ce(III) coordination polymers formulated as Ce(bpdc)(Hbpdc)(DMF)_2 (1) and [Ce_2(bpdc)_3(DMF)_2(H_2O)_4]?2DMF (2) (H_2bpdc = 2,2'-bipyridine-4,4'-dicarboxylic acid, DMF = N,N-Dimethyl formamide) have been synthesized under solvothermal condition and characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in monoclinic, space group C2/c with a = 2.2520(2), b = 1.17787(12), c = 1.16128(11) nm, α = 90, β = 95.5600(10), γ = 90°, V = 3.0658(5) Nm~3, Z = 4, M_r = 771.70, D_c = 1.672×10~(-9) g/cm~3. Compound 2 crystallizes in triclinic, space group P1 with a = 1.00610(10), b = 1.17219(11), c = 1.36891(14) nm, α = 66.9340(10), β = 87.182(2), γ = 76.2570(10)°, V = 1.4411(2) nm~3, Z = 1, M_r = 1371.25, D_c = 1.580×10~(-9) g/cm~3. Both compounds exhibit 3D Ce(III)-organic frameworks. Furthermore, thermal stability and luminescent properties were also investigated. CCDC:(1)913670, (2)909563.