CAJ | 학술논문

摘要对Gd(Ⅲ)的三元配合物室温和低温的固体粉末以及低温THF溶液EPR波谱的研究发现， Gd(Ⅲ)三元配合物固体粉末在室温和低温EPR波谱各共振吸收峰差异不大，但在低温THF溶液中EPR波谱出现超精细分裂，甚至存在超超精细分裂. Gd(Ⅲ)三元配合物随协同配体改变， EPR各共振吸收峰位置、强度和数目均存在较大变化，且不对称参数λ随协同配体不同而改变; 大多数Gd(Ⅲ)三元配合物表现“U”谱特征.
적요대Gd(Ⅲ)적삼원배합물실온화저온적고체분말이급저온THF용액EPR파보적연구발현， Gd(Ⅲ)삼원배합물고체분말재실온화저온EPR파보각공진흡수봉차이불대，단재저온THF용액중EPR파보출현초정세분렬，심지존재초초정세분렬. Gd(Ⅲ)삼원배합물수협동배체개변， EPR각공진흡수봉위치、강도화수목균존재교대변화，차불대칭삼수λ수협동배체불동이개변; 대다수Gd(Ⅲ)삼원배합물표현“U”보특정.
Gd(Ⅲ) ternary complexes of the solid powder and THF solution have been investigated by EPR spectra. The EPR spectra of Gd(Ⅲ) ternary complexes have many differences due to the change of the coordinated synergic agents. Resonance peaks of the solid powder complexes dont show an obvious difference between room temperature and liquid nitrogen, but solution EPR spectra of Gd(Ⅲ) ternary complexes in the liquid nitrogen shows a superfine splitting, fine splitting and super-hyperfine splitting. Most Gd(Ⅲ) complexes show prominent “U” spectrum feature. It results from the EPR spectra that the strength of crystal field of Gd(Ⅲ) ternary complexes belongs to the intermediate CF category, the asymmetry parameter λ is changed with the variation of the synergic agents.