Oligomerization and cyclization processes in the nucleation of microporous silicas

被引：102

作者：

Mora-Fonz, MJ ^{[1
]}

Catlow, CRA ^{[1
]}

Lewis, DW ^{[1
]}

机构：

[1] UCL, Ctr Theoret & Computat Chem, Dept Chem, London WC1H 0AJ, England

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2005年 / 44卷 / 20期

关键词：

density functional calculations; silicates; sol-gel processes; zeolites;

D O I：

10.1002/anie.200462524

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Figure Presented) Key prenucleation species like the open-chain tetramer and the four-membered-ring structure shown are implicated in the formation of zeolites according to density functional theory calculations. The role of the solvent and the pH value is confirmed in the control of condensation reactions, particularly those favoring the formation of cyclic structures present in many zeolite structures. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：3082 / 3086

页数：5

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