Preparation and Characterization of Heteropoly Octadecamolybdodiphosphates

Chemical Research in Chinese Universities ›› 1991, Vol. 7 ›› Issue (1): 6-10.

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Preparation and Characterization of Heteropoly Octadecamolybdodiphosphates

Wang Enbo, You Wansheng, Liu Jingfu, Hu Changwen, Zhang Baojian

Department of Chemistry, Northeast Normal University, Changchun

Received:1990-05-15 Online:1991-01-24 Published:2011-09-09
Supported by:
Supported by the National Natural Science Foundation of China

Abstract

Abstract: Heteropoly molybdophosphates with general formula M_nP₂Mo₁₈O₆₂ ·xH₂O, where M = H⁺, K⁺, NH₄⁺, Ca²⁺, Co²⁺, Ni²⁺, Cu²⁺, Zn²⁺ and Ag⁺, were prepared and characterlzed by elemental analysis, IR and UV spectrometry and thermal analysis. The solubilities of the compounds were examined. The IR spectra show that the countercations and the crystallization water have an influence upon the vibration frequencies of v_Mo-Oc and v_Mo-Oc-Mo.In the UV spectra, the charge-transfer bands are assigned to e→e and e→b₂ transition. All the compounds decompose at 328～534℃.

Key words: Preparation, Heteropoly molybdophosphates, Formula

Wang Enbo, You Wansheng, Liu Jingfu, Hu Changwen, Zhang Baojian . Preparation and Characterization of Heteropoly Octadecamolybdodiphosphates[J]. Chemical Research in Chinese Universities, 1991, 7(1): 6-10.

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Preparation and Characterization of Heteropoly Octadecamolybdodiphosphates

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