The synthesis and characterization of a series of mixed W-Zr polynuclear Lindqvist-type complexes, deriving from hexatungstate [W6O19](2-), are described in this work. This family of compounds is built from {W5O18Zr}(2-) moieties as shown by the X-ray structures of the monomeric [W5O18Zr(H2O)(3-n)(DMSO)(n)](2-) (n = 1 and 2) and dimeric [{W5O18Zr(mu-OH)}(2)](6-) anions. A comprehensive spectroscopic study (W-183 NMR, FTIR, Raman, EXAFS, and EPR) of these compounds is presented. The goal of incorporating Zr-IV cations into an oxotungstic core is to obtain spectroscopic models that could mimic the interactions that develop in supported catalysts between the active phase and the supporting oxide. This work tends to show that these molecular compounds can be regarded as soluble structural analogues of WOx/ZrO2 catalysts, which are interesting candidates for the skeletal isomerization of light n-alkanes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据