Synthesis, Crystal Structure and Luminescence Property of a 2D Mn（II） Coordination Polymer Based on Isoniazid

摘要

A novel 2D Mn(II) coordination polymer [Mn(CH3COO)2(INH)]n (INH = isoniazid) has been synthesized in DMF solution with isoniazid and Mn(CH3COO)2. The polymer was characterized by single-crystal X-ray diffraction analysis, FTIR and X-ray powder diffraction (XRPD). The crystal belongs to the monoclinic system, space group P2flc with a = 9.3251 (18), b = 16.340(3), c = 8.8096(17) A, β = 94.747(3)°, V = 1337.7(4) A3, Z = 4, μ(MoKa) = 1.006 mm-1, F(000) = 636, R = 0.0754 and wR = 0.1375 (I 〉 2σ(I)). In the complex, each Mn(II) atom is coordinated to three CH3COO groups and two INH ligands. The Mn(II) atoms locate in a distorted coordination octahedron and are bridged by CH3COO" ions to form a 1D S shaped chain extending along the c direction. The INH molecules act as bridges to link the Mn(II) atoms of adjacent chains and further construct a lamellar polymer. The remaining coordination site is occupied by an O atom of the other CH3COO. The experimental results show that the title complex has good luminescence property and could be used as potential optical materials.