### 稀土硝酸盐二甲亚砜络合物的振动光谱研究

1. 中国科学院长春应用化学研究所
• 收稿日期:1985-08-10 修回日期:1986-03-28 发布日期:1986-08-15

### THE VIBRATIONAL SPECTRA OF RARE EARTH NITRATE COMPLEXES WITH DIMETHYL SULFOXIDE

Bao Feng; Xi Shiquan; Zhu Jinchang

1. Changchun Institute of Applied Chemistry, Academia Sinica
• Received:1985-08-10 Revised:1986-03-28 Published:1986-08-15

Abstract: Fourteen dimethyl sulfoxide complexes of lanthanide and yttrium nitrates were prepared and analysed. The IR and Raman spectra of the complexes were studied systematically. The bands have been assigned and discussed. The S=O and Ln—O stretching vibration modes split in the heavy lanthanide complexes, which was attributed to the resonance coupling of same groups. The group symmetry changing causes the split of nitrate combination frequency 1775 cm~(-1). The coordination mode of nitrate can be identified in the complexes. The Ln—O stretching mode was suggested. The generic form of “inclined W” between the Ln—O stretching frequency and the L-value of rare earthes was discovered.