铜二取代三元杂多化合物的制备、晶体结构和性质  

Synthesis, Characterization and Crystal Structure of New Transition Metal Disubstituted Ternary Heteropolyoxometallate

作　　者：王敬平[1] 韩秋霞[1] 牛景扬[1] 

机构地区：[1]河南大学化学化工学院,开封475001

出　　处：《无机化学学报》2002年第9期933-937,共5页Chinese Journal of Inorganic Chemistry

基　　金：河南省杰出青年基金资助项目(No.);河南省自然科学基金资助项目(No.004031800和004040300)。

摘　　要：The half Dawson structure complex has been prepared by reaction of Na2WO4·2H2O, Na2MoO4·2H2O and NaH2PO4 in water. 4H3[PW6Mo4Cu2O38(H2O)2] have been synthesized by reaction of 9- and Cu2+ in water and recrystallized in a mixed acetone/water solvent. They were characterized by elemental analyses, IR spectra and electronic spectra. The crystal structure of 4H3[PW6Mo4Cu2O38(H2O)2] has been determined by X ray structure analysis for the first time, which belongs to trigonal with space group R 3, a=b=c=1.53081 (18) nm, α=β=γ=109.458(17)°, Z=1, Dc=3.141Mg·m-3, R=0.0780, Rw=0.1480. The sites of the molybdenum, tungsten and copper atoms are disordered over 12 possible locations in the crystal, and the anion has a high symmetry due to the disorder of the molybdenum, tungsten and copper atoms. CCDC: 176656.The half Dawson structure complex has been prepared by reaction of Na2WO4·2H2O, Na2MoO4·2H2O and NaH2PO4 in water. 4H3[PW6Mo4Cu2O38(H2O)2] have been synthesized by reaction of 9- and Cu2+ in water and recrystallized in a mixed acetone/water solvent. They were characterized by elemental analyses, IR spectra and electronic spectra. The crystal structure of 4H3[PW6Mo4Cu2O38(H2O)2] has been determined by X ray structure analysis for the first time, which belongs to trigonal with space group R 3, a=b=c=1.53081 (18) nm, α=β=γ=109.458(17)°, Z=1, Dc=3.141Mg·m-3, R=0.0780, Rw=0.1480. The sites of the molybdenum, tungsten and copper atoms are disordered over 12 possible locations in the crystal, and the anion has a high symmetry due to the disorder of the molybdenum, tungsten and copper atoms. CCDC: 176656.

关 键 词：过渡金属 杂多酸 KEGGIN结构 制备 晶体结构 性质 铜二取代三元杂多化合物 

分 类 号：O641.4[理学—物理化学]