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Pistolis G, Andreopoulou AK, Malliaris A, et al. Direct observation of odd-even effect in dilute polymeric solutions: A time-resolved fluorescence anisotropy study. J Phys Chem B. 2005;109(23):11538-43doi: 10.1021/jp044662c.
Pistolis, G., Andreopoulou, A. K., Malliaris, A., & Kallitsis, J. K. (2005). Direct observation of odd-even effect in dilute polymeric solutions: A time-resolved fluorescence anisotropy study. The journal of physical chemistry. B, 109(23), 11538-43. https://doi.org/10.1021/jp044662c
Pistolis, G, et al. "Direct observation of odd-even effect in dilute polymeric solutions: A time-resolved fluorescence anisotropy study." The journal of physical chemistry. B vol. 109,23 (2005): 11538-43. doi: https://doi.org/10.1021/jp044662c
Pistolis G, Andreopoulou AK, Malliaris A, Kallitsis JK. Direct observation of odd-even effect in dilute polymeric solutions: A time-resolved fluorescence anisotropy study. J Phys Chem B. 2005 Jun 16;109(23):11538-43. doi: 10.1021/jp044662c. PMID: 16852414.
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J Phys Chem B. 2005 Jun 16;109(23):11538-43. doi: 10.1021/jp044662c.

Direct observation of odd-even effect in dilute polymeric solutions: A time-resolved fluorescence anisotropy study.

The journal of physical chemistry. B

G Pistolis, A K Andreopoulou, A Malliaris, J K Kallitsis

Affiliations

  1. Institute of Physical Chemistry, NCSR Demokritos, Athens 153 10, Greece.

PMID: 16852414 DOI: 10.1021/jp044662c

Abstract

The odd-even effect is demonstrated, for the first time, in dilute polymeric solutions of polyethers, consisting of substituted luminescent quinquephenyl units which are connected by flexible aliphatic chains of 7-12 methylene groups. The effect, which is demonstrated by means of steady state and time resolved fluorescence anisotropy, has been attributed to the different mutual orientation of the luminescent dipoles, in the odd (7, 9, 11) and even (8, 10, 12) polymers. Namely, as the temperature of the solution is lowered the flexible aliphatic chains adopt the nearly all-staggered lowest energy conformation, which results in different mutual orientations of the fluorophores in the two types of polymers.

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