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Two-photon absorption properties of alkynyl-conjugated pyrene derivatives

Authors
Kim, Hwan MyungLee, Yeon OkLim, Chang SuKim, Jong SeungCho, Bong Rae
Issue Date
4-Jul-2008
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF ORGANIC CHEMISTRY, v.73, no.13, pp.5127 - 5130
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF ORGANIC CHEMISTRY
Volume
73
Number
13
Start Page
5127
End Page
5130
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/123033
DOI
10.1021/jo800363v
ISSN
0022-3263
Abstract
A series of pyrene derivatives having 4-(N,N-dimethylamino)phenylethynyl groups as the substituent (1-5) have been synthesized and their two-photon absorption properties were investigated. Comparison of two-photon cross section (delta(max)) with related compounds reveals that pyrene is as efficient pi-center as anthracene in two-photon materials. Moreover, the two-photon cross section (delta(max)) increased with the number of substituents reaching at the maximum value of 1150 GM for the tetra-substituted derivative (5). Furthermore, the two-photon action cross section (Phi delta(max)) of 5 is comparable to that the most efficient two-photon materials. This result provides a useful guideline to the design of efficient two-photon materials bearing pyrene as a pi-center.
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