Synthesis and Properties of Triheteropoly Compounds Containing Mn,Co,Ni

Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (11): 1428.

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Synthesis and Properties of Triheteropoly Compounds Containing Mn,Co,Ni

WANG Jun¹, WU Zhi-Yun¹, ZHANG Heng-Bin¹, ZHAO Zhong-Qing¹, WANG Xian-Ren², WEI Quan³

1. Department of Chemistry, Jilin University, Changchun, 130023;
2. Department of Electronic Science, Jilin University, Changchun;
3. Centre of Test, Jilin University, Changchun

Received:1991-12-12 Revised:1992-05-27 Online:1992-11-24 Published:1992-11-24

Abstract

Abstract: Five heteropoly silicotungstic compunds were synthesized.Their properties were characterized.The results indicate that the IRabsorption of W-O_c-W and Si-O bonds,the electronic bonding energy of constituent elements,the reducibility of W-Opolyhedra,the lattice size and crystal shape of heteropoly compound and the thermal stability of Keggin unit etc.are changed obviously,when Watom in Keggin anion was substituted for a alcunary or a lower valence transition metal ion such as Mn²⁺,Co²⁺ and Ni²⁺.In the paper,the correlation of the properties of the transition metals with the changes mentioned above was discussed.

Key words: Heteropoly silicotungstic compound, Transition metal, Lacuna

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WANG Jun, WU Zhi-Yun, ZHANG Heng-Bin, ZHAO Zhong-Qing, WANG Xian-Ren, WEI Quan. Synthesis and Properties of Triheteropoly Compounds Containing Mn,Co,Ni[J]. Chem. J. Chinese Universities, 1992, 13(11): 1428.

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Synthesis and Properties of Triheteropoly Compounds Containing Mn,Co,Ni

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