An orientation factor is calculated and the effect of steric hindrance in the donor and acceptor molecules is found for the efficiency of resonance dipole–dipole transfer of electronic energy. General expressions for the acceptor luminescence anisotropy under such conditions in isotropic media (gases and liquids) are obtained taking into account orientational relaxation in ensembles of donors and acceptors. It is shown that the luminescence anisotropy of an acceptor with significant steric hindrance can increase by more than an order of magnitude compared with the case with no hindrance.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 77, No. 1, pp. 11–17, January–February, 2010.
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Blokhin, A.P., Tolkachev, V.A. Influence of steric hindrance on luminescence anisotropy of resonance dipole–dipole transfer of electronic excitation energy. J Appl Spectrosc 77, 6–12 (2010). https://doi.org/10.1007/s10812-010-9286-8
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DOI: https://doi.org/10.1007/s10812-010-9286-8