一种有机-无机复合的硼钒酸盐[enH_2]_4[V_6B_(20)O_(50)H_8(H_2O)]·en·8H_2O（英文）  

An organic-inorganic complicated vanadoborate [enH_2]_4[V_6B_(20)O_(50)H_8(H_2O)]·en·8H_2O

作　　者：李海楼[1] 孙龙辉[1] 刘雅洁[1] 陈利娟[1] 

机构地区：[1]河南大学化学化工学院,河南省多酸化学重点实验室,河南开封475004

出　　处：《化学研究》2016年第3期299-306,共8页Chemical Research

基　　金：Supported by the Natural Science Foundation of China(21301049,U1304208)

摘　　要：借助水热合成技术获得了一种新的有机-无机复合的硼钒酸盐[H_2en]_4[V_6B_(20)O_(50)H_8(H_2O)]·en·8H_2O(1)(en=乙二胺),并对其进行了红外光谱、热重分析和单晶X射线衍射等表征.化合物1的分子结构包含1个[V_6B_(20)O_(50)H_8(H_2O)]8-多酸阴离子、4个质子化的[H_2en]^(2+)阳离子、1个游离的乙二胺分子和8个结晶水分子.化合物1最有趣的结构特点体现在:夹心型的[V_6B_(20)O_(50)H_8(H_2O)]8-多酸阴离子是由2个呈交错排列的三角形{B_(10)O_(26)}簇和1个六边形的{V_6O_(18)}簇通过12个三重桥氧原子连接而成的,其中两个三角形{B_(10)O_(26)}簇相互旋转的角度为45°.A new organic-inorganic complicated vanadoborate[H_2en]_4[V_6B_（20）O_（50）H_8（H_2O）]·en·8H_2O（1）（en = ethylenediamine）was obtained via hydrothermal technique and characterized by IR spectrometry,thermogravimetric analysis and single crystal X-ray diffraction.Its structure comprises one[V_6B_（20）O_（50）H_8（H_2O）]8-polyoxoanion,four protonated [H_2en]^（2＋）cations,a free en molecule and eight water molecules.The most interesting characteristic that the sandwich-type[V_6B_（20）O_（50）H_8（H_2O）]-polyoxoanion was built by two triangle{B_（10）O_（26）}clusters in the staggered fashion anchoring a hexagonal{V_6O_（18）}cluster via twelveμ3-O atoms.During the course of integrating with the hexagonal{V_6O_（18）}cluster,two triangle {B_（10）O_（26）}clusters were rotated with 45°.

关 键 词：多金属氧酸盐 硼钒酸盐 水热合成技术 

分 类 号：O614.3[理学—无机化学]