p.1247
p.1252
p.1258
p.1262
p.1266
p.1270
p.1275
p.1279
p.1283
The Two-Photon Excited Fluorescence of Pyrazine Derivatives
Abstract:
A series of multi-branched pyrazine derivatives have been synthesized, of which, the two-branched one with para-branching pattern shows much enhanced two-photon absorption cross section (σ) than that with meta-branching pattern (1.8 times). The three-branched pyrazine derivative, in which the branches are at ortho- or para-position, show strong two-photon absorption properties (σ=753GM), while its s-triazine analogue TSTA, with all the branches in meta-position, exhibit too weak two-photon excited fluorescence to be detected. These results indicate great effects of branching pattern on two-photon absorption.
Info:
Periodical:
Pages:
1266-1269
Citation:
Online since:
June 2012
Authors:
Price:
Сopyright:
© 2012 Trans Tech Publications Ltd. All Rights Reserved
Share:
Citation: