Synthesis and Structure of Novel Mn(II) Complex with in situ Synthesized Ligand

摘要

Based on in situ synthesized Schiffbase ligand Dppd (Dppd = N-(di(2-pyridyl)methylene)-p-phenylenediamine), a novel dinuclear Mn(II) complex, [Mn2(Dppd)4(OAc)2](ClO4)2(CH2Cl2)2·2(H2O) (I), was synthesized and characterized by IR and single-crystal X-ray diffraction. The crystals belong to mono-clinic system space group C2/c with a = 26.3868(2), b = 20.0379(4), c = 19.16260(10) A, β = 126.6900(10)°, V= 8124.61(18) A~3, Z= 4. The complex exhibits a dinuclear structure in which two symmetric Mn(II) atoms adopt somewhat distorted octahedral geometry. The 2D structure is further constructed through intermolec-ular benzene-benzene offset n-n interactions.