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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
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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.
作者 何宏山
机构地区 华侨大学材料科学与技术学院
出处 《光谱实验室》 CAS CSCD 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
关键词 钐 铒 卟啉 配合物 核磁共振 Sm,Er,Porphyrinate,Complexes,NMR
分类号 O657.32 [理学—分析化学] O657.2 [理学—分析化学]
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光谱实验室
2008年 第6期

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