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Volumn 112, Issue 43, 2008, Pages 10790-10800

Experimental and theoretical study of triplet energy transfer in rigid polymer films

Author keywords

[No Author keywords available]

Indexed keywords

A CENTERS; CRITICAL RADIUSES; EXCHANGE ENERGIES; EXCLUDED VOLUMES; EXOTHERMIC ENERGIES; EXPERIMENTAL OBSERVATIONS; HIGH EXTINCTION COEFFICIENTS; LASER FLASHES; LIFE-TIMES; MOLECULAR VOLUMES; MONITORING CHANGES; PHYSICAL CONTACTS; POLIES (METHYL METHACRYLATE); RIGID POLYMERS; SENSITIVE METHODS; SEPARATION DISTANCES; SHORT TIME SCALES; THIOXANTHONE; TRANSFER RATE CONSTANTS; TRIPLET ENERGIES; TRIPLET ENERGY TRANSFERS;

EID: 56049114480     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp802164d     Document Type: Article
Times cited : (20)

References (58)
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    • and references therein
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    • Chandrasekhar, S. Rev. Mod. Phys. 1943, 15, 1. see p 86.
    • (b) Chandrasekhar, S. Rev. Mod. Phys. 1943, 15, 1. see p 86.
  • 39
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    • Molecular were calculated with Spartan'04 ver. 1.0.3, Wavefunction, Inc
    • Molecular volumes were calculated with Spartan'04 (ver. 1.0.3, Wavefunction, Inc.).
  • 40
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    • In solution exothermic triplet energy transfer is usually nearly diffusion limited and in most cases does not tend to show an inverted behavior at high exothermicities. This may reflect the accommodation of large exothermicities by energy transfer to higher triplet states of A. Exothermic energy transfer involving highly distorted triplets may be less than diffusion limited in solution and give rise to lower h 0 values in rigid media
    • 0 values in rigid media.
  • 42
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    • DA.
    • DA.
  • 45
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    • 3 a free of about 32% at 295° C may be estimated for ethyl acetate. At 77 K ethyl acetate undergoes a shrinkage of about 20%, reflecting a loss in free
    • 3 a free volume of about 32% at 295° C may be estimated for ethyl acetate. At 77 K ethyl acetate undergoes a shrinkage of about 20%, reflecting a loss in free volume.
  • 46
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    • Viscoelastic Properties of Polymers; John Wiley & Sons, Inc: New York
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    • (1980) See Table 11-II
    • Ferry, J.D.1
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    • Statistical Mechanics; Haper and Row: New York
    • (b) McQuarrie, D. A. Statistical Mechanics; Haper and Row: New York, 1976. See Figure 13-3.
    • (1976) See Figure , pp. 13-13
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  • 53
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    • For highly-allowed singlet-singlet coulombic energy transfer from 1-cnloroanthracene (1CA) to perylene (P) the half-quenching distance at which the energy-transfer rate constant, ket, equals the radiative rate constant of 1CA of ∼108 s-1 is ∼40 Å (Turro, N. J. Modern Molecular Photochemistry; University Science Books, Sausalito, CA, 1991; pp 322-324, Assuming the extent of overlap of D emission and A absorption remains nearly constant ket varies as the radiative rate, kD, of the excited donor × the extinction coefficient, ε, of the A transition and inversely as the sixth power of the separation distance, r Turro, N. J. Modern Molecular Photochemistry; University Science Books, Sausalito, CA, 1991; p 303, For 3PXAN, kD is only about 10-7 × kD for 1CA, and for the S0-T1 transition of TPDC, ε
    • 3PXAN to TPDC at 10 Å, the closest noncontact D/A separation allowed by the molecules of the medium.
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    • 19d indicates that electron-transfer kinetics in rigid media appears to be functionally independent of orientation, i.e., angle averaged, at times > 1 ns.
    • 19d indicates that electron-transfer kinetics in rigid media appears to be functionally independent of orientation, i.e., angle averaged, at times > 1 ns.
  • 55
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    • 33D and A in contact may not be appropriate when they are separated by molecules of the medium.
    • 33D and A in contact may not be appropriate when they are separated by molecules of the medium.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.