【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。更多还原

【Abstract】 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.更多还原