Crystal Structure of Dodecaaminium Didecavanadate Dodecahydrate  

Crystal Structure and Dodecaaminium Didecavanadate Dodecahydrate

作　　者：Cheng Chang-Zhang Shao Shi-Bao Huang Xiao-Ying Lin Zhou-Bin(Fujian Institute of Research on the Structure of Matter ,Chinese Academy in Sciences, FuZhou, 350002 ) 

出　　处：《Chinese Journal of Structural Chemistry》1996年第1期40-43,共4页结构化学（英文）

摘　　要：NH_4)_(12)(V_(10)O_(28))_2·(H_2O)_(12)M_r=2347. 44 , triclinic, P1, a=10. 155 (1), b=10. 286(3) , c=16. 732(9) A, a=96. 50(4), β=87.18(4),γ=108. 99 (1)°, V=1642(4) A ￣3, Z=1, D_c=2. 37 g/cm￣3, F(000)=1160,λ(MoKa)=0. 71069 A, μ=27. 43 cm￣(-1), T= 23℃,final R=0.040 and R_w=0. 058 for 4415 observatives reflections with I≥3σ(I).The title compound contains two (V_(10)O_(28))￣(-6) anions, twelve NH ions and twelve water molecules.The decavanadate anion is an isolated group consisting of ten condensed VO_6 octahedra sharing edges. The anions and the water molecules as well as the cations and the water molecules are connected by the strong hydrogen bonds (the distances are in the range of 2. 758～2. 956 A ).the anions and the cations are connected by the strong hydrogen bonds (2. 720～2. 859A) and the electrostatic force.

关 键 词：crystal structure decavanadate anion aminium complex 

分 类 号：O614.511[理学—无机化学] O76[理学—化学]