Two-photon absorption properties of alkynyl-conjugated pyrene derivatives
- Authors
- Kim, Hwan Myung; Lee, Yeon Ok; Lim, Chang Su; Kim, Jong Seung; Cho, 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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