SYNTHESES AND INFRARED SPECTRA OF RARE EARTH COMPLEXES WITH DIMETHYL PHOSPHATE

Chinese Journal of Applied Chemistry ›› 1990, Vol. 0 ›› Issue (5): 58-63.

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SYNTHESES AND INFRARED SPECTRA OF RARE EARTH COMPLEXES WITH DIMETHYL PHOSPHATE

Li Laiming¹, Zeng Guangfu¹, Li Han¹, Ma Aizeng²

1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022;
2. Department of Soil Chemistry, Jilin University of Agriculture, Changchnu

Received:1989-10-30 Revised:1990-03-12 Published:1990-10-10 Online:1990-10-10

Abstract

Abstract: The solid complexes of Sm, Eu, Ho, Yb and Lu with dimethyl phosphate(DMP)were synthesized by reaction of trimethyl phosphate(TMP)with corresponding rare earth chlorides. The mechanism of thermodecomposition of the complexes has been studied. Their infrared spectra were measured and main infrared absorption bands were assigned. The result showed that the polymeric title complexes are extremely similar to Sm(DMP)₃ single crystal in the spectral properties of RE-O bond and PO₂ group. Thus these complexes may have the samemolecular configuration, i.e. dimetbyl phosphate anions coordinate with lanthanide atomsthrough double O-P-O bridges to form a special network of rings-linking-rings, each of which consists of twenty-four atoms. The RE-O bond of RE(DMP)₃ is principally ionic.

Key words: dimethyl phosphate, rare earth complex, thermo-decomposition, infrared spectrum

Li Laiming, Zeng Guangfu, Li Han, Ma Aizeng. SYNTHESES AND INFRARED SPECTRA OF RARE EARTH COMPLEXES WITH DIMETHYL PHOSPHATE[J]. Chinese Journal of Applied Chemistry, 1990, 0(5): 58-63.

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SYNTHESES AND INFRARED SPECTRA OF RARE EARTH COMPLEXES WITH DIMETHYL PHOSPHATE

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