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在pH =1 0的水溶液中 ,吡啶与Na12 [Cu3 (H2 O) 3 (AsW9O3 3 ) 2 ]·xH2 O反应 ,得到了新的夹层型杂多钨酸盐(Hpy) 4 Na2 H2 [Cu(H2 O) {WO(H2 O) }(WO) (AsW9O3 3 ) 2 ]·5H2 O单晶 ,用X射线单晶衍射法及元素分析确定了其结构 ,晶胞参数为 :空间群P2 1/c ,a =2 4681( 5 )nm ,b =1 7474( 3 )nm ,c =2 485 3 ( 5 )nm ,β =118 72 3 ( 3 )° ,V =9 40 0 ( 3 )nm3 ,Z =4,R1=0 0 491.[Cu(H2 O) {WO(H2 O) }(WO) (AsW9O3 3 ) 2 ] 8-是由两个α B AsW9O9-3 3 阴离子连接一个Cu2 + 、两个W6+ 形成的 ,中心离子的配位数分别为 4,5和 6.讨论了标题化合物的形成条件 .
In aqueous solution of pH = 10, pyridine was reacted with Na12 [Cu3 (H2 O) 3 (AsW9O3 3) 2] · xH2O to form a new interlayer heteropolytungstate (Hpy) 4 Na2 H2 [Cu H 2 O) {WO (H 2 O)} (WO) (AsW 9 O 3 3) 2] · 5H 2 O single crystal. The structure was confirmed by X-ray single crystal diffraction and elemental analysis. b = 1 7474 (3) nm, c = 2 485 3 (5) nm, β = 118 72 3 (3) °, V = 9 40 0 (3) nm 3, Z = 4, R1 = 0 0 491. [Cu (H 2 O) {WO (H 2 O)} (WO) (AsW 9 O 3 3) 2] 8 is a Cu 2+ anion linked by two α B AsW 9 O 9-3 3 anions, The coordination numbers of the central ions formed by the two W6 + are 4, 5 and 6. The formation conditions of the title compound are discussed.