| Autor: |
Gelinck, Gerwin H., Piet, Jacob J., Warman, John M. |
| Zdroj: |
Synthetic Metals; May 1999, Vol. 101 Issue: 1-3 p553-554, 2p |
| Abstrakt: |
The excess polarizability volume, ΔVp, associated with the formation of the T1states of oligothiophenes, OTn with n from 2 to 12, has been determined by measuring the change in the imaginary component of the complex microwave conductivity resulting on flash-photolysis of dilute solution. ΔVpgives a direct measure of the additional electronic delocalization associated with the halffilled HOMO and LUMO orbitals of these states. ΔVpincreases with increasing length of the oligomer chain from 5 Å3for n=2 to 59 Å3for the dodecamer. The increased delocalization in T1is discussed in terms of coupling with higher states in the triplet manifold. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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