Long range electron transfer across $π$-conjugated systems: role of electron correlations
| dc.creator | Lakshmi, S. | |
| dc.creator | Datta, Ayan | |
| dc.creator | Pati, Swapan K. | |
| dc.date | 2005-07-02 | |
| dc.date.accessioned | 2026-07-07T03:05:53Z | |
| dc.date.available | 2026-07-07T03:05:53Z | |
| dc.description | We consider a prototype polyene chain: donor-$π$(bridge)-acceptor. The distance between the donor and the acceptor is varied by increasing the number of bridged atoms and rate of electron transfer, k$_{et}$ is studied for a series of different donors, D=NH$_2$, SH, OH, and a fixed acceptor, A=NO$_2$. We observe a large k$_{et}$ even at a very large D-A separation of $\sim$ 45 $Å$, unexpected from the well-known and standard theories like the Forster theory. Such a long range electron transfer is due to the strong electron-electron interactions in the bridged orbitals that result in deconfinment of electrons in donor orbitals. Calculations at various levels: semi-empirical and many-body exact, have been performed to accurately account for such correlations. | |
| dc.description | Accepted in Phys. Rev. B | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0507046 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0507046 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/26611 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Soft Condensed Matter | |
| dc.title | Long range electron transfer across $π$-conjugated systems: role of electron correlations | |
| dc.type | text |