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Volumn 15, Issue 17, 2009, Pages 4289-4300

Modulation of spectrokinetic properties of o-quinonoid reactive intermediates by electronic factors: Time-resolved laser flash and steady-state photolysis investigations of photochromic 6- and 7-arylchromenes

Author keywords

Kinetics; Laser spectros copy; Photochromism; Photolysis; Reactive in termediates

Indexed keywords

ARYL RINGS; COMBINED ANALYSIS; DECAY RATE CONSTANTS; DECAY RATES; ELECTRON-ACCEPTING; ELECTRON-DONATING; ELECTRONIC FACTORS; KINETIC DATUM; LASER FLASHES; OPHTHALMIC LENS; PHOTO-ACTIVATED; QUINONOID INTERMEDIATES; REACTIVE IN TERMEDIATES; REAL-TIME ABSORPTIONS; SPECTRAL CHARACTERIZATIONS; STEADY-STATE PHOTOLYSIS; SUZUKI COUPLINGS; THERMAL DECAYS; TIME-RESOLVED;

EID: 65349158573     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.200801925     Document Type: Article
Times cited : (32)

References (51)
  • 1
    • 84942320882 scopus 로고
    • Eds, H. Dürr, H. Bouas-Laurent, Elsevier, Amsterdam
    • a) Photochromism: Molecules and Systems (Eds.: H. Dürr, H. Bouas-Laurent), Elsevier, Amsterdam, 1990;
    • (1990) Photochromism: Molecules and Systems
  • 3
    • 65349165846 scopus 로고    scopus 로고
    • 16S5;
    • c) M. Irie, Chem. Rev. 2000, 100, 16S5;
    • (2000) Chem. Rev , vol.100
    • Irie, M.1
  • 4
    • 65349196239 scopus 로고    scopus 로고
    • Organic Photochromlc and Thermochwmic Compounds, 1-2 (Eds.: J. C. Crano, R. Guglielmetti), Plenum Press, New York, 1999;
    • d) Organic Photochromlc and Thermochwmic Compounds, Vol. 1-2 (Eds.: J. C. Crano, R. Guglielmetti), Plenum Press, New York, 1999;
  • 15
    • 0001028705 scopus 로고    scopus 로고
    • Eds, J. C. Crano, R. Guglielmetti, Plenum Press, New York
    • b) B. V. Gemert, In Organic Photochromic and Thermochwmic Compounds, Vol. 1 (Eds.: J. C. Crano, R. Guglielmetti), Plenum Press, New York, 1999, p. 111.
    • (1999) Organic Photochromic and Thermochwmic Compounds , vol.1 , pp. 111
    • Gemert, B.V.1
  • 30
    • 65349181938 scopus 로고    scopus 로고
    • US Patent, 5451344 A 19950919, 1995 [Chem. Abstr. 1995. 124, 145902
    • e) D. B. Knowles, B. Van Gemert, US Patent, 5451344 A 19950919, 1995 [Chem. Abstr. 1995. 124, 145902];
    • Knowles, D.B.1    Van Gemert, B.2
  • 43
    • 0344944922 scopus 로고    scopus 로고
    • and references therein;
    • a) W. Zhao, E. M. Carreira, Org. Lett. 2003, 5, 4153, and references therein;
    • (2003) Org. Lett , vol.5 , pp. 4153
    • Zhao, W.1    Carreira, E.M.2
  • 46
    • 65349092935 scopus 로고    scopus 로고
    • The absorptions at 680-690 nm with a very strong blue color were traced to the products of bimolecular reactions involving the photo-generated o-quinonoid intermediates and the precursor chromenes. Presumably, the o-quinonoid intermediates undergo, under steady-state photolysis, photoinduced electron transfer reactions with chromenes that contain e electron-rich triphenylamino moieties. These bimolecular reactions were found to be strongly subject to solvent polarity (not observed in cyclohexane), photon flux that generates persistent E,E isomers and concentrations of the precursor chromenes, and are expected to carry no bearing whatsoever for application of chromenes as photochromic materials.
    • The absorptions at 680-690 nm with a very strong blue color were traced to the products of bimolecular reactions involving the photo-generated o-quinonoid intermediates and the precursor chromenes. Presumably, the o-quinonoid intermediates undergo, under steady-state photolysis, photoinduced electron transfer reactions with chromenes that contain e electron-rich triphenylamino moieties. These bimolecular reactions were found to be strongly subject to solvent polarity (not observed in cyclohexane), photon flux that generates persistent E,E isomers and concentrations of the precursor chromenes, and are expected to carry no bearing whatsoever for application of chromenes as photochromic materials.
  • 49
    • 65349131949 scopus 로고    scopus 로고
    • 3)-O bond length is typically 1.44-1.46 Å.
    • 3)-O bond length is typically 1.44-1.46 Å.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.