Synthesis and Crystal Structure of the Complex [Sm(p-MOBA)3bipy]2 · 2C2H5OH

摘要

A new binuclear complex [Sm(p-MOBA)3bipy]2 · 2C2H5OH (p-MOBA = p-methoxybenzoate, bipy = 2,2'-bipyridine) has been prepared via dissolution reaction in an ethanol/water mixed solution and characterized by elemental analysis, IR, UV, XRD and molar conductance, respectively. Its single crystal was characterized by X-ray single crystal diffraction. The crystal belongs to triclinic system, space group P1 . The crystallographic data are: a = 10.970(3) A, b = 11.507(4) A, c = 13.931(4) A, α = 84.449(4)°, β = 76.403(4)°, γ = 87.284(4)°, Z= 1, D_r = 1.574 Mg/m~3, M_r = 1612.02, F(000) = 814, R1 = 0.0275, wR2 = 0.0646. Two Sm(III) ions are linked by four carboxylic groups with bidentate bridging and tridentate chelating-bridging coordination modes. Each center Sm~(3+) is nine coordinated with a distorted tri-capped triangular prism geometry.