摘要
利用水热工艺,在异烟酸存在的条件下,选用偏钒酸铵与Co Cl2·6H2O反应,一个新的钒酸盐基化合物Co(V2O6)(H2O)2被成功地合成。借助于X-射线单晶衍射、红外光谱和热重分析等手段对该化合物的结构进行了表征。测试结果表明该化合物通过{Co O4(H2O)2}八面体和{VO4}四面体间相互连接形成三维纯无机框架。化合物属于正交晶系,Pnma空间群,晶胞参数a=0.5556(8)nm,b=1.0670(15)nm,c=1.1888(16)nm,α=β=γ=90°,V=0.7047(17)nm3,Z=8,R1=0.0191,wR2=0.0682。有趣的是,该化合物对碘单质具有可逆的吸附作用。
A new vanadate-based compound, Co( V2 O6)( H2 O)2, has been synthesized under hydrothermal conditions by the reaction of NH4 VO3 with COCl2·6 H2 O in the presence of the assistant ligand isonicotinic acid. The compound has been structurally characterized by X-ray single crystal analysis,IR spectrum,and TG analysis. The results show that the compound exhibits interesting purely inorganic 3 D framework constructed by the { Co O4( H2 O)2} octahedron and { VO4} tetrahedron. It belongs to orthorhombic system,Pnma space group,Crystal cell parameters,a = 0. 5556( 8) nm,b = 1. 0670( 15) nm,c = 1. 1888( 16) nm,α = β = γ = 90°,V = 0. 7047( 17) nm3,Z = 8,R1= 0. 0191,wR2= 0.0682 interestingly,it shows the reversible iodine adsorption.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2017年第S1期175-178,共4页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金(21565026)
贵州省教育厅科技拔尖人才项目(黔教合KY字[2016]112)
黔科合LH字[2016]7037号
兴义民族师范学院博士启动基金(16XYBS17)
关键词
钒酸盐
水热合成
晶体结构
纯无机框架
碘吸附
vanadate
hydrothermal synthesis
crystal structure
purely inorganic framework
iodine adsorption
