摘要
在水热条件下合成了一种新型化合物(dienH3)2P2W5O23.H2O(dien=NH(CH2CH2NH2)2),并通过元素分析、红外I、CP和X-射线单晶衍射等分析手段对其结构进行了表征。化合物属三斜晶系,P1-空间群,超分子化合物中杂多阴离子[P2W5O23]6-是由5个WO4八面体和2个PO4四面体键合而成;W,P原子组成一个畸变五角双锥结构,杂多阴离子[P2W5O23]6-与质子化的dien和H2O分子通过氢键构成无限二维网状结构。
A novel tungstophosphate supermolecular compound （dienH3）2P2W5O23·H2O（dien= NH（CH2CH2NH2）2） was synthesized by hydrothermal method and its crystal structure was determined by using single crystal X-ray diffraction. The crystal belonged to triclinic system, space group PI. The result of structure analysis showed that EP2W5O23]^6- of the heteropoly anion consists of five WO6 octahedra and two PO4 tetrahedron, and W, P atoms in the [P2W5O23 ]^6- structure showed a distotted pentagonal bipyrarnidal configuration, and the heteropoly anions were connected to a infinite planar structure with the protonated dien by hydrogen bonds.
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2007年第4期39-42,共4页
Journal of Wuhan University of Technology
基金
湖北省自然科学基金(2003ABA085)
关键词
多金属氧酸盐
超分子化合物
水热合成
晶体结构
polyoxometallate
supemlolecular compound
hydrothermal synthesis
crystal structure
