摘要
研究乙酰丙酮-meso-四-(对-氯代)苯基卟啉及其Nd、Sm、Eu、Gd、Tb、Dy、Ho、Er、Lu配合物在3600~220cm-1范围内的傅立叶变换红外光声光谱,对其主要谱带进行经验归属.实验结果表明,四-(对-氯代)苯基卟啉与稀土乙酰丙酮配合物中的金属离子配位,削弱乙酰丙酮环上的M-O键伸缩振动,使该谱带向低波数方向移动.金属敏感带出现在~1558、~1474、~1427、~1219、~798、~733、~250cm-1.
The fourrier transform infrared photoacoustic spectra of tetra-(parachlorophenyl)porphyrin and its coordination compounds LnT(p-Cl)PPacac(Ln:Nd,Sm,Eu Gd,Tb,Dy,Ho,Er,Lu)in the range of 3600-220 cm-1 were measured and investigated. Because of the coordination bonding between the rare earth ion and nitrogen in LnT(p-Cl)PPacac forms,the band near 400 cm-1 and M-O stretching vibration on the acetylacetonate ring become weaker,and shifted to the lower wavenumber. Metal sensitive bands were found at about 1558,1474,1427,1219,798,733 and 250 cm-1.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1995年第1期94-97,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
国家教委博士点基金
关键词
红外光声光谱
卟啉
稀土金属配合物
Infrared photoacoustic spectra,Rare earth metal,Porphyrin