Characterization of silica-supported vanadium(V) complexes derived from molecular precursors and their ligand exchange reactions

被引：64

作者：

Rice, GL ^{[1
]}

Scott, SL ^{[1
]}

机构：

[1] UNIV OTTAWA,DEPT CHEM,OTTAWA,ON K1N 6N5,CANADA

来源：

LANGMUIR | 1997年 / 13卷 / 06期

关键词：

OXIDE CATALYSTS; STRUCTURAL CHARACTERIZATION; RAMAN-SPECTROSCOPY; TITANIA SUPPORTS; SURFACE; EPOXIDATION; PHASES; NMR; REACTIVITY; MOLYBDENUM;

D O I：

10.1021/la960679d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The reaction of O=VX(3), where X is Cl or (OPr)-Pr-i, with the hydroxyl-terminated silica surface gives the well-defined surface complexes =SiOVOX(2). These complexes have been characterized by V-51 magic angle spinning and C-13 cross polarization magic angle spinning NMR spectroscopy and infrared spectroscopy. The surface complexes undergo clean ligand replacement reactions with alcohols, similar to the reactions of analogous molecular vanadium complexes and relevant to the understanding of mechanisms in catalysis.

引用

收藏

页码：1545 / 1551

页数：7

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