【作者】 眭云霞；

【Author】 Sui Yunxia Center of Modern Analysis,Nanjing University,Nanjing,210093 P.R.China

【机构】 南京大学现代分析中心；

【摘要】 <正>本文报道了冠醚超分子阳离子与[Cu（mnt）₂]^2-阴离子组成配合物单晶（NH₄）₂（benzo—15— crown-5）₄[Cu（mnt）₂]·0．5H₂O 的 EPR,该单晶的晶体结构属三斜晶系,空间群为 P—1,一个单胞中含一个分子。在室温 X 波段对该单晶的 EPR 测量观察到⁶³Cu 磁性核引起的超精细（HF）更多还原

【Abstract】 In the present paper it is reported that EPR of（NH₄）₂（benzo-15-crown-5）₄[Cu（mnt）₂]·0.5H₂O complex single crystal by combined supramolecular cation of ion-crown ether with [Cu（mnt）₂]^2- anions.The crystal structure of complex is triclinic and belongs to the space ground P-1.Z=1. Four hyperfine lines of ⁶³Cu were observed in the X-band at room temperature.EPR spectrum of the complex single crystal along x,y,z axis and angular variation of EPR spectra of the complex single crystal for an applied magnetic field lying in the three orthogonal planes are given figure 1. All EPR Spectra of the three orthogonal planes contain four hyperfine lines.The principal values and direction cosines of g and A tensors are rigorously calculated by using the least-square-fitting method,specially adapted to non-coincident g and A tensors systems.It is seen from table 1 that complex is characterized by an axial symmetry,i.e.g_x’ Δg_y’.It is good agreement with X-ray that Cu（Ⅱ）is located in square-planar coordination geometry.The principle axis of g_z’ and A_x″ tensors almost are coincident.更多还原