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Volumn 111, Issue 25, 2007, Pages 7176-7183

Electrolyte-induced mesoscopic aggregation of thiacarbocyanine dye in aqueous solution: Counterion size specificity

Author keywords

[No Author keywords available]

Indexed keywords

AGGLOMERATION; CYANIDES; POLYELECTROLYTES; SOLUTIONS;

EID: 34547281743     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp070520h     Document Type: Article
Times cited : (32)

References (55)
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    • (a) Jelley, E. E. Nature 1936, 138, 1009;
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    • 1937, 139, 631.
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    • The origin of absorption reduction is not clear at present, but it is probably due to a decrease in the apparent absorption cross-section caused by densely-distributed aggregate particles, that is, no light can transmit through the region of densely-distributed particles composed of strongly absorbing chromophore units. Similar phenomenon has been observed for solution containing a large number of mesoscopic J aggregates Yao, H.; Kimura, K. Chem. Phys. Lett. 2001, 340, 211.
    • The origin of absorption reduction is not clear at present, but it is probably due to a decrease in the apparent absorption cross-section caused by densely-distributed aggregate "particles", that is, no light can transmit through the region of densely-distributed particles composed of strongly absorbing chromophore units. Similar phenomenon has been observed for solution containing a large number of mesoscopic J aggregates (Yao, H.; Kimura, K. Chem. Phys. Lett. 2001, 340, 211.
  • 38
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    • Weigand, W.; Rotermund, F.; Penzkofer, A. J. Phys. Chem. A 1997, 101, 7729.. See also the Supporting Information.
    • (b) Weigand, W.; Rotermund, F.; Penzkofer, A. J. Phys. Chem. A 1997, 101, 7729.). See also the Supporting Information.
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    • s aggregates.
    • s aggregates.
  • 41
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    • L aggregates whose absorption spectra exhibited peaks at 477 and 480 nm (Figure 3).
    • L aggregates whose absorption spectra exhibited peaks at 477 and 480 nm (Figure 3).
  • 44
    • 84906358313 scopus 로고    scopus 로고
    • s aggregate, we performed modified polarized-light microscopy under linearly polarized white light illumination produced by removing the analyzer set above the objective rear aperture. This microscope configuration can specifically provide the images for the absorbing materials based on linear dichroism. For more detail, see the Supporting Information. Through the observations, we found that the result on the orientation of TCC in the aggregate is consistent with that obtained by the normal PLM measurements with crossed polarizers.
    • s aggregate, we performed modified polarized-light microscopy under linearly polarized white light illumination produced by removing the analyzer set above the objective rear aperture. This microscope configuration can specifically provide the images for the absorbing materials based on linear dichroism. For more detail, see the Supporting Information. Through the observations, we found that the result on the orientation of TCC in the aggregate is consistent with that obtained by the normal PLM measurements with crossed polarizers.
  • 45
    • 84906386933 scopus 로고    scopus 로고
    • s aggregate, its absorption contribution at 550 nm is expected to be considerably small, so that the relative retardation would be obtainable and give us useful information on the aggregate birefringence.
    • s aggregate, its absorption contribution at 550 nm is expected to be considerably small, so that the relative retardation would be obtainable and give us useful information on the aggregate birefringence.
  • 52
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    • +, respectively.
    • +, respectively.
  • 53
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    • J-Aggregates; Kobayashi, T., Ed.; World Scientific: Singapore, 1996.
    • J-Aggregates; Kobayashi, T., Ed.; World Scientific: Singapore, 1996.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.