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Volumn 110, Issue 32, 2006, Pages 15864-15868

The colors of polydiacetylenes: A commentary

Author keywords

[No Author keywords available]

Indexed keywords

CONFORMATIONS; ELECTRON TRANSITIONS; SEMICONDUCTOR QUANTUM WIRES;

EID: 33748554154     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp0638437     Document Type: Article
Times cited : (134)

References (59)
  • 16
    • 84889324039 scopus 로고    scopus 로고
    • Optical properties of single conjugated polymer chains
    • Lanzani G., Ed.; Wiley-VCH: Berlin
    • Schott, M. Optical Properties of Single Conjugated Polymer Chains, In Photophysics of Molecular Materials; Lanzani G., Ed.; Wiley-VCH: Berlin, 2006; p 49.
    • (2006) Photophysics of Molecular Materials , pp. 49
    • Schott, M.1
  • 20
    • 84906409108 scopus 로고    scopus 로고
    • Barisien, T.; Legrand L.; Schott, M. to be published
    • Barisien, T.; Legrand L.; Schott, M. to be published.
  • 27
    • 79959526517 scopus 로고
    • Springer Topics in Applied Physics 68; Cardona, M., Güntherodt, G., Eds; Springer: Berlin
    • Yacobi, Y.; Ehrenfreund, E. In Light Scattering in Solids VI, Springer Topics in Applied Physics 68; Cardona, M., Güntherodt, G., Eds; Springer: Berlin, 1991; p 73.
    • (1991) Light Scattering in Solids VI , pp. 73
    • Yacobi, Y.1    Ehrenfreund, E.2
  • 33
    • 84906394421 scopus 로고    scopus 로고
    • note
    • If this is indeed the red chain geometry, then the blue → red transition is a planar → undulated transition. This provides a possible cause for disorder in the crystal, as follows. A well ordered single crystal is preserved only if the alternate rotations of all chains are related by a symmetry operation of the crystal group (one may then say they are all in phase). But the phase may vary more or less randomly from one chain to another. This will only be a minor perturbation of the chain exciton properties since chain-chain interactions are weak. But only the average atomic positions will be detected by diffraction, and the chain will look planar on average. This might explain why the modulated structure has not been detected crystallographically. Note that this disorder does not imply that individual chains are disordered, they still can keep a perfect periodicity, but it is no more related to that of other chains by a symmetry operation of the crystal, as it is in the ordered crystal.
  • 36
  • 39
    • 84906377769 scopus 로고    scopus 로고
    • Spagnoli, S.; Berréhar, J.; Schott, M.; Johnson, M.; Toupet, L. to be published
    • Spagnoli, S.; Berréhar, J.; Schott, M.; Johnson, M.; Toupet, L. to be published.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.