新型钒氧酸盐的水热合成与晶体结构

利用水热合成法,由CuSO4、NH4VO3、乙二胺,反应物摩尔比为3∶10∶1,在反应釜内,180℃、高压的条件下晶化4d,制备钒氧化合物Cu（C2H4N2）V2O6,并对其结构进行表征,通过X射线衍射确定晶体结构,该晶体晶胞参数为a=5.786 1（12）nm,b=8.161 7（16）nm,c=17.523（4）nm,α=90.00°,β=90.43（3）°,γ=90.00°,Z=827.5（3）,D=2.323,F_000=546,R1=0.028 8,Wr=0.079 5。Cu原子为六配位,形成八面体,V1、V2均为四配位,形成钒氧四面体,单分子之间连接成一维链状结构,链与链之间通过氧原子彼此相连形成二维网状结构。

Hydrothermal synthesis and crystal structure of a new oxovandate

An oxovandium component Cu（C2H4N2） V2O6 is synthesized by CuSO4、NH4VO3 and En in hydrothermal method and reacted in the condition of 180℃ high pressure.At the same time,X-ray structural diffraction is characterized with crystal＇s cell parameter：a=5.786 1（12）nm,b=8.161 7（16）nm,c= 17.523（4）nm,α=90.00°,β=90.43（3）°,γ= 90.00°,Z= 827.5（3）,D= 2.323,F_000 = 546,R1= 0.028 8,and Wr=0.079 5.Cu is six coordinate atom forming octahedron.V1 and V2 are both four V-O coordinate atoms forming tetrahedron.The single molecules are connected to a 1D chain structure,and a 2D net structure is synthesized between the chains.