An Empiric Linear Formula between the Internal Tetrahedron Symmetric Stretch Frequency and the Al Content in the Framework of KL Molecular Sieves

O6; KL molecular sieves with different framework compositions were secondarily synthesized by substituting Si for Al with a solution of (NH4)2SiF6. The internal tetrahedron symmetric stretch frequency, at ν770 cm-1, is linear with the molar fraction of Al (XAl= Al/(Si+Al)) in the framework of KL sam...

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Bibliographic Details
Published in中国化学快报(英文版) Vol. 14; no. 8; pp. 870 - 873
Main Authors Nong Yue HE, Chun YANG, Jian Xin TANG, Peng Feng XIAO, Hong CHEN
Format Journal Article
LanguageEnglish
Published Key Laboratory for Molecular and Biomolecular Electronics of Ministry of Education, Southeast University, Nanjing 210096%Department of Chemistry, Nanjing Normal University, Nanjing 210097%Key Lab of New Materials and Technology of China National Packaging Corporation,Zhuzhou Engineering College, Zhuzhou 412008%Key Laboratory for Molecular and Biomolecular Electronics of Ministry of Education, Southeast University, Nanjing 210096 01.08.2003
Key Lab of New Materials and Technology of China National Packaging Corporation,Zhuzhou Engineering College, Zhuzhou 412008
Subjects
framework composition
KL molecular sieve
linearity
infrared spectroscopy
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Summary:O6; KL molecular sieves with different framework compositions were secondarily synthesized by substituting Si for Al with a solution of (NH4)2SiF6. The internal tetrahedron symmetric stretch frequency, at ν770 cm-1, is linear with the molar fraction of Al (XAl= Al/(Si+Al)) in the framework of KL samples: XAl = -7.309×10-3 (υ770-760) + 0.3242.
ISSN:1001-8417
1878-5964