无机-有机杂化钼磷、钒钼磷多酸化合物的合成与结构  

Hydrothermal synthesis,structural characterization of molybdophosphate and vanadium molybdophosphates polyoxometalates

作　　者：巫平松[1] 张宏宇[1] 许林[1] 德格吉日呼[1] 胡长文[1] 王恩波[1] 

机构地区：[1]东北师范大学化学学院,吉林长春130024

出　　处：《东北师大学报（自然科学版）》2001年第4期51-56,共6页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目 ( 2 9771 0 0 6 )

摘　　要：通过对V2 O5 ,Na2 MoO4·2H2 O ,HF ,Ni(NO3) 2 ·6H2 O ,H3PO4和吡啶体系水热反应的研究 ,合成并表征了无机 -有机杂多酸化合物 [C5 H6 N] 3[C5 H5 N][PMo12 O40 ] ( 1 ) ,[C5 H6 N] 4[PVMo11O40 ] ( 2 )和 [C5 H6 N] 4[HPV2 Mo10 O40 ] ( 3 ) .化合物( 1 )属单斜晶系 ,C/ 2c空间群 ,a =2 .1 867( 6)nm ,b =1 .3 978( 4)nm ,c =1 .663 3( 3 )nm ,β =1 0 5.73 ( 1 0 )°,V =4 .893nm3,R =0 .0 60 4 ,Z =4 ;化合物 ( 2 )属单斜晶系 ,C/ 2c空间群 ,a =2 .1 858( 4)nm ,b =1 .3 971 ( 3 )nm ,c =1 .663 5( 3 )nm ,β =1 0 5.83 ( 3 )°,V =4 .8873 ( 1 7)nm3,Z =4 ,R =0 .0 4 63 ;化合物 ( 3 )属单斜晶系 ,P2 1n空间群 ,a =1 .1 1 2 2 ( 2 )nm ,b =1 .94 1 2 ( 3 )nm ,c=1 .2 4 84 ( 3 )nm ,β =99.89( 3 )°,V =2 .6565( 9)nm3,Z =2 ,R =0 .0 690 .The V 2O 5/Na 2MoO 4·2H 2O/HF/Ni(NO 3) 2·6H 2O/H 3PO 4/pyridine system was investigated using hydrothermal techniques.Three new phases, 3[PMo 12 O 40 ](1), 4[PVMo 11 O 40 ](2)and 4[HPV 2Mo 12 O 40 ](3)have been prepared and structurally characterized.Crystal data:compound (1),monoclinic, C/2c space group, a=2.186 7 (6)nm, b=1.397 8(4) nm, c =1.663 3(3)nm, β=105.73(10)°,V= 4.892 8 nm 3,R=0.060 4,Z=4; compound(2),monoclinic, C/2 cspace group, a=2.185 8(4) nm, b=1.397 1(3) nm, c=1.663 5(3) nm, β=105.83(3)°,V=4.887 3(17) nm 3, Z=4,R=0.046 3; compound(3),monoclinic, P2 1/n space group, a=1.112 2(2) nm, b= 1.941 2 (3) nm, c=1.248 4(3) nm, β=99.89(3)°,V=2.656 5(9) nm 3, Z=2,R=0.069?0.

关 键 词：水热合成 多金属氧酸盐 晶体结构 无机-有机杂多酸化合物 磷钼酸盐 磷钼钒系化合物 

分 类 号：O614.612[理学—无机化学] O613.62[理学—化学]