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Volumn 25, Issue 1, 2009, Pages 21-25

Synthesis, self-assembly, and photophysical behavior of oligo phenylene ethynylenes: From molecular to supramolecular properties

Author keywords

[No Author keywords available]

Indexed keywords

AQUEOUS SOLUTIONS; CARBOXYMETHYLCELLULOSE; CONJUGATION LENGTHS; FLUORESCENCE QUANTUM YIELDS; FLUORESCENCE YIELDS; LAPONITE; METHANOL SOLUTIONS; OLIGO-PHENYLENE-ETHYNYLENES; PHOTOPHYSICAL BEHAVIORS; PLANARIZATION; RED SHIFTS; SCAFFOLD MATERIALS; SELF- ASSEMBLIES; SUPRAMOLECULAR PROPERTIES;

EID: 60849083554     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la803111b     Document Type: Article
Times cited : (51)

References (34)
  • 6
  • 16
    • 0342517062 scopus 로고    scopus 로고
    • Tour, J. M. Chem. Rev. 1996, 96, 537-553.
    • (1996) Chem. Rev , vol.96 , pp. 537-553
    • Tour, J.M.1
  • 26
    • 61849111044 scopus 로고    scopus 로고
    • PPE polymers and oligomers are expected to have little barrier to rotation of the phenyl groups in the ground state, and changes attributable to planarization have been reported.27 However, a recent study of OPEs structurally related to OPE-1 suggests that whereas rotation should be restricted very little a planar ground state is the lowest energy form. 28 Interestingly, the authors obtain similar absorption and fluorescence spectra to those shown in Figure 1a and calculate absorption spectra having similar transition wavelengths for conversion of the planar ground state to the excited state.28 The study also suggests that fluorescence should occur from a planar excited state, and thus we infer that planarization should involve significant shifts in absorption but relatively small shifts in emission
    • 28 The study also suggests that fluorescence should occur from a planar excited state, and thus we infer that planarization should involve significant shifts in absorption but relatively small shifts in emission.
  • 31
    • 61849167288 scopus 로고    scopus 로고
    • The splitting of the excited states in an H aggregate or dimer results in a high-energy allowed transition and a lower-energy forbidden transition; internal conversion from the high-energy state to the low-energy (forbidden) state usually results in H aggregates or dimers showing very weak (if any) fluorescence at low energies,30 as is oberved for both OPE-1 and OPE-2 in Laponite
    • 30 as is oberved for both OPE-1 and OPE-2 in Laponite.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.