Meso-5，10，15，20-四-（对-甲氧基苯基）卟啉稀土氯化物的合成与表征

meso-Tetrakis-（p-methoxyphenyl）porphyrin rare earth chlorides, Ln（TMOPP）Cl （Ln： Dy, Ho, Tm, Yb, Lu and H2TMOPP： tetrakis-（p-methoxyphenyl）porphyrin）, were synthesized and characterized. Their composition, structure and properties were studied by elemental analyses, ultra-violet visible spectra, infrared spectra, luminescence spectra, molar conductances and thermal analysis. The four nitrogen atoms of the porphyrin are bonded to a central rare earth ion with four coordination numbers. The lanthanide ion lies above the porphyrin molecular plane and chloride ion is outside boundary of the coordination compound. Complexes are stable below 200℃ and do not contain small molecules （water or solvent）. Ultra-violet visible and infrared spectra were recorded and some of spectral bands were assigned. Surface photovoltaic spectroscopy （SPS） and electric-field induced surface photovoltaic spectroscopy （EFISPS） were measured. The spectral bands were assigned. The photovoltaic response is similar to the UV-visible absorption spectrum, therefore corresponding to analogous electron transition process.     

稀土乙酰丙酮络合物的激光拉曼和红外光谱(Ⅰ)

本文测定了15个一水稀土乙酰丙酮络合物的激光拉曼和红外光谱,在401、415cm~(-1)附近的拉曼谱带对不同稀土离子表现敏感,它们随原子序数变化呈现“四分组”效应,这是第一次在振动光谱中观察到的镧系递变规律。该系列络合物的振动频率变化亦符合镧系“斜W”效应的规律,这些特征规律为确认401、415cm^-1附近谱带为M-O拉伸振动提供了最好的证据。实验结果同时可用于讨论M-O键的性质。