化学
碱金属
沸石
无机化学
金属
药物化学
有机化学
催化作用
作者
Song-Ho Lee,Chae‐Ho Shin,Suk Bong Hong
出处
期刊:Chemistry Letters
[Oxford University Press]
日期:2003-05-27
卷期号:32 (6): 542-543
被引量:18
摘要
Abstract A novel synthesis route to the high-silica zeolite MCM-22, which includes the combined use of a flexible, linear diquaternary ion N,N,N,N′,N′,N′-hexamethyl-1,5-pentanediaminium and Na+ or K+, is described. Unlike the previously known organic structure-directing agents leading to the crystallization of MCM-22 and related materials, the organic additive used here was found to locate inside both the 12-ring supercages and the sinusoidal 10-ring channels of MWW topology.
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