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VOLUME 81 | ISSUE 9 | PAGE 583
Weak intermolecular charge transfer in the ground state of a π-conjugated polymer chain
D. Yu. Paraschuk, S. G. Elizarov, A. N. Khodarev, A. N. Shchegolikhin+, S. A. Arnautov*, E. M. Nechvolodova*
International Laser Center, Moscow State University, 119992 Moscow, Russia
+Emanuel Institute of Biochemical Physics RAS, 119991 Moscow, Russia
*Semenov Institute of Chemical Physics RAS, 119991 Moscow, Russia


PACS: 82.35.Cd, 78.30.Jw, 78.40.Me
Abstract
We show that a π -conjugated polymer chain can demonstrate weak intermolecular charge transfer in the electronic ground state. Poly[2-methoxy-5-(2`-ethyl-hexyloxy)-1,4-phenylene vinylene]/2,4,7-trinitrofluorenone (MEH-PPV/TNF) donor-acceptor films have been studied by optical absorption, Raman, infrared spectroscopy, and differential scanning calorimetry. The factors influencing weak intermolecular charge transfer in π -conjugated chains are discussed.


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