稀土卟啉配合物结构及变温核磁研究  

Structural and Spectroscopic Studies of Monoporphyrinate Samarium(Ⅲ) and Erbium(Ⅲ) Complexes

作　　者：何宏山[1] 

机构地区：[1]华侨大学材料科学与技术学院,福建省泉州市362011

出　　处：《光谱实验室》2008年第6期1221-1225,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：国家自然科学基金(20571027);福建省自然科学基金(E0410019)资助项目

摘　　要：合成了Sm3+及Er3+的两种单卟啉配合物。经质谱、1H NMR、UV-Visible等表征,表明卟啉及三齿配体的七个氮原子共同配位于稀土离子。变温核磁研究表明质子的化学位移与温度的倒数呈现线性相关性。Two samarium（Ⅲ） and erbium （Ⅲ） monoporphyrinate complex stabilized by anionic hydrotris（pyrazolyl）borate （TpH） were prepared and characterized by elemental analysis,UV-Vis, IR and mass spectra.Structural analysis revealed that seven N atoms from porphyrin dianion and TpH-coordinated to the lanthanide ions. The 1H NMR spectra showed Sm 3＋ has a slight effect on proton chemical shifts, whereas Er 3＋ has a heavy effect that leads to the up-field and downfield shift of proton chemical shift. The variable temperature 1H NMR reveals that the chemical shifts of protons of all complexes are temperature-dependent.

关 键 词：钐 铒 卟啉 配合物 核磁共振 

分 类 号：O657.32[理学—分析化学] O657.2[理学—化学]