Picosecond time-resolved kinetic studies on the formation of short-lived pseudoisocyanine iodide photoisomers in methanol and ethylene glycol
✍ Scribed by Sabine K. Rentsch; Romas V. Danielius; Roaldas A. Gadonas
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 315 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
Upon excltmg pseudolsocyanme lodlde wlrh 20 ps pulses at wavelengths between 490 and 530 nrn wlthm the absorption band, formation of a new tramlent absorption with a ma_xunum at 545 nm was obscrvcd. It IS attnbutcd to an unstable photolsomcr of pscudolsocyanlne mdldc The quantum ylcld of the photolsomcr IS 3 1% In methanol and 6% In ethylene glycol 1_ introduction Pseudoisocyanme lo&de (1 ,l 'dlethyL2,2'cyanme Iodide) is one of the polymethme dyes which are of mterest not only as mode-lockmg dyes but also as sensetlzers of photograpluc matenals. In low-vlscoslty solvents polymethme dyes with cham lengths (-CH =CH-),