메뉴 건너뛰기




Volumn 111, Issue 10, 2007, Pages 1737-1745

Photochromism of photoenolizable ketones in quinoline and 1,8-naphthyridine series studied by time-resolved absorption spectroscopy

Author keywords

[No Author keywords available]

Indexed keywords

ABSORPTION SPECTROSCOPY; ENERGY TRANSFER; GROUND STATE; HYDROGEN BONDS; MOLECULAR DYNAMICS; PHOTOCHEMICAL REACTIONS; PHOTOCHROMISM;

EID: 34047211896     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp064397q     Document Type: Article
Times cited : (14)

References (42)
  • 14
    • 0003758825 scopus 로고    scopus 로고
    • Elsevier Science B. V, Amsterdam, The Netherlands
    • Bouas-Laurent, H.; Dürr, H. Photochromism; Elsevier Science B. V.: Amsterdam, The Netherlands, 2003.
    • (2003) Photochromism
    • Bouas-Laurent, H.1    Dürr, H.2
  • 15
    • 34047196690 scopus 로고    scopus 로고
    • Valès, M. Ph.D. thesis, Université de Luminy, Marseille, 2001.
    • (a) Valès, M. Ph.D. thesis, Université de Luminy, Marseille, 2001.
  • 20
    • 34047232579 scopus 로고    scopus 로고
    • Note that the reduction of the initial intensity in both the 640 and the 490 nm kinetics as the quencher concentration is raised, satisfactorily reproduced by the fits in Figure 8, is not due to a lowering of the initial TB concentration but results from an effect of the convolution of the constant apparatus response with the increasingly rapid exponential decay kinetics of TB (as the timescale of these kinetics are similar to the apparatus response time, its short-time region appears truncated).
    • Note that the reduction of the initial intensity in both the 640 and the 490 nm kinetics as the quencher concentration is raised, satisfactorily reproduced by the fits in Figure 8, is not due to a lowering of the initial TB concentration but results from an effect of the convolution of the constant apparatus response with the increasingly rapid exponential decay kinetics of TB (as the timescale of these kinetics are similar to the apparatus response time, its short-time region appears truncated).
  • 29
    • 33845183923 scopus 로고    scopus 로고
    • If the triplet of the photoenol and the 1,4-biradical are one and the same species, the dominant character between radical-like or excited triplet state behavior (see ref 5) has to be determined although this information can only be precisely deduced from time-resolved ESR experiments, a) Ikoma, T, Akiyama, K, Tero-Kubota, S, Ikegami, Y. J. Phys. Chem. 1989, 93, 7087
    • If the triplet of the photoenol and the 1,4-biradical are one and the same species, the dominant character between radical-like or excited triplet state behavior (see ref 5) has to be determined although this information can only be precisely deduced from time-resolved ESR experiments, (a) Ikoma, T.; Akiyama, K.; Tero-Kubota, S.; Ikegami, Y. J. Phys. Chem. 1989, 93, 7087.
  • 31
    • 0000113135 scopus 로고    scopus 로고
    • Quenching of type II biradical with β-carotene by triplet energy transfer is an example of excited state triplet behavior characterization. Kumar, C. V, Chattopadhyay, S. K, Das, P. K. J. Am. Chem. Soc. 1983, 105, 5143
    • Quenching of type II biradical with β-carotene by triplet energy transfer is an example of excited state triplet behavior characterization. Kumar, C. V.; Chattopadhyay, S. K.; Das, P. K. J. Am. Chem. Soc. 1983, 105, 5143.
  • 35
    • 34047207972 scopus 로고    scopus 로고
    • 2(π,π*) state during Norrish type I and II reactions has been recently demonstrated by CASSCF calculation. He, H.-Y.; Fang, W.-H.; Philips, D. L. J. Phys. Chem. A 2004, 108, 5386.
    • 2(π,π*) state during Norrish type I and II reactions has been recently demonstrated by CASSCF calculation. He, H.-Y.; Fang, W.-H.; Philips, D. L. J. Phys. Chem. A 2004, 108, 5386.
  • 41
    • 0021487061 scopus 로고    scopus 로고
    • Caldwell, R. A. Pure Appl. Chem. 1984, 56, 1167. The conjugation effect occurring during the biradical decay can be explained in the following terms: Increased delocalization should increase the average distance between the unpaired electrons of the biradical, thus lowering their spin-orbit coupling and consequently decreasing the yield of the ISC process responsible for the decay.
    • (b) Caldwell, R. A. Pure Appl. Chem. 1984, 56, 1167. The conjugation effect occurring during the biradical decay can be explained in the following terms: Increased delocalization should increase the average distance between the unpaired electrons of the biradical, thus lowering their spin-orbit coupling and consequently decreasing the yield of the ISC process responsible for the decay.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.