Protolytic reactions of acridine in the triplet state
✍ Scribed by Yoshiyuki Nishida; Koichi Kikuchi; Hiroshi Kokubun
- Publisher
- Elsevier Science
- Year
- 1980
- Weight
- 440 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0047-2670
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Rcsonnncc Raman spectra of the photoexcited lowest triplet states of piienazine and acridine in solution observed b> time-resolved tcchniqucr are reported. Nine fundamentals in phenlvine and fourteen in acridinc arc observed and assigned. The phcnazinc triplet (==3 X IO4 M) in cyclohcxane is observe
Phosphorescence and fluorescence from the dye in complexes of DNA with 9-aminoacridine and acridine orange in a gIycerol-H,O glass have been measured at 77°K. The dependence of the p/f ratio for 9-aminoacridine on the exciting wavelength demonstrates triplet-triplet energy transfer from DNA to dye.
The three spin-lattice relaxation rates for the triplet state of ncridine in zerc-field have been determined in a biphenyl host from 1.7-3.2 K. The mean relaxation rate for the triplet state of phcnanthrene was determined in a biphenyl host from 1.3-13 K Two conclusions of a more general nature emer