Abstract
Accurate ab-initio calculations are performed for pyrrole and thiophene oligomers bonded through α and β carbons. The thermodynamical stabilitiy of all possible binding types including the branched forms of tetramers and pentamers are compared. Employing the probabilities obtained from these calculations, a Monte Carlo type growth scheme is applied to predict branching as functions of the chain length and temperature. A high degree of branching for polypyrrole is reported whereas the linear chains dominate the structure of polythiophene.
Original language | English |
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Pages (from-to) | 335-336 |
Number of pages | 2 |
Journal | Synthetic Metals |
Volume | 101 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 1999 |
Event | Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier, France Duration: 12 Jul 1998 → 18 Jul 1998 |
Keywords
- Ab initio quantum chemical methods and calculations
- Polypyrrole
- Polythiophene