SAPO-37 - THE IMPLICATIONS OF STRUCTURE FLEXIBILITY ON ACIDITY

被引：13

作者：

CORMA, A ^{[1
]}

FORNES, V ^{[1
]}

PEREZPARIENTE, J ^{[1
]}

机构：

[1] UNIV POLITECN VALENCIA, CSIC, INST TECNOL QUIM, CAMINO VERA S-N, E-46071 VALENCIA, SPAIN

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1993年 / 08期

关键词：

D O I：

10.1039/c39930000676

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

When tetrapropylammonium cations are removed from the alpha cavities of SAPO 37, but tetramethylammonium cations are still in the beta-cages, a shift in the vibrational frequency of hydroxy groups to lower frequencies, with the corresponding appearance of stronger acid sites is observed; this is a consequence of the increase of the T-O-T' angle dimensions owing to the presence of the bulky tetramethylammonium cations.

引用

页码：676 / 678

页数：3

共 15 条

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