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Updated: Jun 8, 2026
Förster Resonance Energy Transfer Mapping: A New Methodology to Elucidate Global Structural Features
Published on: March 16, 2022
Beyond Förster resonance energy transfer in linear nanoscale systems
1Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, United Kingdom. william.barford@chem.ox.ac.uk
Abstract:
The line dipole approximation is used to investigate analytical corrections to the Förster energy transfer rate, k, derived via the point dipole approximation. It is shown that that for molecules whose conjugation length, L, is much larger than the separation, R, between molecules the line dipole approximation predicts k ~ (RL)⁻² ~ (RN)⁻² (where N is the number of conjugated monomer units). This is in contrast to the point dipole approximation, which predicts k ~ L²R⁻⁶ ~ N²R⁻⁶.
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