Título:
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Valence-bond treatment of distortions in polyacene polymers
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Autor/a:
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García Bach, Ma. de los Ángeles; Peñaranda Ayllon, Angelina; Klein, D. J.
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Otros autores:
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Universitat de Barcelona |
Abstract:
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Distortions of polyacene polymers are studied within a many-body valence-bond framework using a powerful transfer-matrix technique for the valence-bond (or Heisenberg) model of the system. The computations suggest that the ground-state geometry is either totally symmetric or possibly exhibits a slight (A2 or B2 symmetry) bond-alternation distortion. The lowest-energy (nonsymmetric, in-plane) distortions are the A2 and B2 modes, which, within our approximations, are degenerate. |
Materia(s):
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-Química física -Polímers -Elastòmers -Physical chemistry -Polymers -Elastomers |
Derechos:
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(c) The American Physical Society, 1992
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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The American Physical Society
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Compartir:
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