Two-photon dyes containing heterocyclic rings with enhanced photostability.
A series of donor-pi-donor derivatives containing phenyl, naphthyl, and anthryl groups as the pi-center and heterocyclic rings as the conjugation bridge have been synthesized and their one- and two-photon spectroscopic properties and photostability were determined. These compounds show bathochromic shifts in the absorption and emission spectra, larger two-photon cross-section, and enhanced photostability in comparison to their open-chain analogues. In addition, a convenient method for the qualitative photostability measurement is proposed.
Kim
Hwan Myung
HM
Molecular Opto-Electronics Laboratory, Department of Chemistry, Korea University, Seoul. chobr@korea.ac.kr
Yang
Wen Jun
WJ
Kim
Chang Ho
CH
Park
Won-Hwa
WH
Jeon
Seung-Joon
SJ
Cho
Bong Rae
BR
D004396:Coloring Agents / Q000138:chemical synthesis* / Q000737:chemistry; D005453:Fluorescence; D006571:Heterocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D007202:Indicators and Reagents; D049449:Luminescence; D008853:Microscopy; D010777:Photochemistry; D017785:Photons; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet
D004396:Coloring Agents; D006571:Heterocyclic Compounds; D007202:Indicators and Reagents