Second harmonic generation of a periodic mesoporous silica containing a triphenylpyrylium moiety

Mercedes Alvaro, Carmela Aprile, Miriam Benitez, Jose Luis Bourdelande, Hermenegildo Garcia, Jose Raul Herance

Research output: Contribution to journalArticleResearchpeer-review

13 Citations (Scopus)

Abstract

A periodic mesoporous SBA-15 silica containing 4,4-(N,N′- diallylaminophenyl)-2,6-diphenylpyrylium ion (BET surface area of 578 m 2 g-1, pore size 5.2 nm) exhibits upon excitation at 1064 nm activity for second harmonic generation that is the double than that of an analogous MCM-41 material synthesized under basic conditions using cetyltrimethylammonium bromide. This fact has been explained as arising from the instability of pyrylium to basic pHs. © 2005 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)66-70
JournalChemical Physics Letters
Volume414
Issue number1-3
DOIs
Publication statusPublished - 3 Oct 2005

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