The X-ray diffraction studies revealed different configurations for the ligand L5(n) (n = 2, 3) depending on the sixth exogenous ligand and/or the counterion. Solid state high-field electron paramagnetic resonance spectra were recorded on complexes 1-4 as on previously described mononuclear Mn(II) systems with tetra- or hexadentate amino-pyridine ligands. Positive and negative axial zero-field splitting
                                    两个五齿
氨基吡啶配体L5(2)和L5(3)(L5(2)和L5(3)代表N-甲基-N,N',N'-三(2-
吡啶基甲基)
乙烷-1分别使用,2-二胺和N-甲基-N,N',N'-三(2-
吡啶甲基甲基)
丙烷-1,3-二胺)合成四种单核Mn(II)配合物,即[(L5 (2))MnCl](PF6)(1(PF6)),[(L5(3))MnCl](PF6)(2(PF6)),[(L5(2))Mn(OH2)](BPh4) 2(3(BPh4)2)和[(L5(3))Mn(OH2)](BPh4)2(4(BPh4)2)。X射线衍射研究表明,取决于第六个外源
配体和/或抗衡离子,
配体L5(n)(n = 2、3)的构型不同。固态高场电子顺磁共振光谱记录在配合物1-4上,如先前描述的具有四齿或六齿
氨基吡啶配体的单核Mn(II)系统上。确定正负轴向零场分裂(ZFS)参数D,其绝对值范围从0.090到0.180 cm(-1)。进行了