We here disclose a new type of two-photon-excited fluorescent triarylborane, tetrabranched triphenylborane , which contains four electron-donating [4-(,-diphenylamino)phenyl]ethynyl branches at 2,6-positions of two phenyl rings. The cross section of reaches 275 GM (1 GM = 10 cm s photon) in tetrahydrofuran. Compared with dibranched triphenylborane , the 2-fold increase in the number of electron-donating branches induces a 3.6-fold increase in the two-photon absorption cross section, suggesting the great cooperative effect of branching in the enhancement of two-photon absorption.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.joc.4c00863 | DOI Listing |
Publication Analysis
Top Keywords
two-photon absorption
12
two-photon-excited fluorescent
8
tetrabranched triphenylborane
8
cooperative branching
8
fluorescent tetrabranched
4
triphenylborane featuring
4
featuring cooperative
4
branching two-photon
4
absorption disclose
4
disclose type
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!