Syntheses and Infrared Spectra of Solid Complexes of Monovalino-Hexaquo-Rare Earth Chlorides

Chinese Journal of Applied Chemistry ›› 1995, Vol. 0 ›› Issue (3): 44-51.

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Syntheses and Infrared Spectra of Solid Complexes of Monovalino-Hexaquo-Rare Earth Chlorides

Ma Aizeng, Li Laiming, Xi Shiquan

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received:1994-07-01 Revised:1994-09-21 Published:1995-06-10 Online:1995-06-10

Abstract

Abstract: The title complexes Ln(Val)Cl₃.6H₂O( Ln=La,Nd,Sm,Gd,Er)have beensynthesized in aqueous solution.The compositions of the complexes were determined by ele-mental analysis and EDTA titration.The infrared spectra of the complexes were measuredwith principal spectral bands being assigned.The results showed that the valine moleculesare zwitterions in the complexes and coordinate to rare earth ions through carboxyl groups,and the six water molectiles coordinate to rare earth ion too.The La ang Nd complexes maybe one dimensional chain complexes of infinite length and the others dinuclear complexes.

Key words: rare earth, valine, complex, infrared spectrum

Ma Aizeng, Li Laiming, Xi Shiquan. Syntheses and Infrared Spectra of Solid Complexes of Monovalino-Hexaquo-Rare Earth Chlorides[J]. Chinese Journal of Applied Chemistry, 1995, 0(3): 44-51.

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Syntheses and Infrared Spectra of Solid Complexes of Monovalino-Hexaquo-Rare Earth Chlorides

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