Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 74
... symmetry operation characteristic of the system . Imperfect resonance implies unequal contributions of equivalent configurations and results when the symmetry operation is no longer charac- teristic of the system ; thus , in valence ...
... symmetry operation characteristic of the system . Imperfect resonance implies unequal contributions of equivalent configurations and results when the symmetry operation is no longer charac- teristic of the system ; thus , in valence ...
Page 83
... symmetry , and the superscript 1 refers to the spin being singlet . Since these symmetries are most readily expressed in coordinate space , the valence bond diagrams form a natural basis for developing intuition concerning the ...
... symmetry , and the superscript 1 refers to the spin being singlet . Since these symmetries are most readily expressed in coordinate space , the valence bond diagrams form a natural basis for developing intuition concerning the ...
Page 91
... symmetry , but basic functions consisting of both plus and minus linear combinations ( possessing plus and minus mirror plane symmetry ) of these diagrams can be constructed . The former occur in the A subspace , while the latter occur ...
... symmetry , but basic functions consisting of both plus and minus linear combinations ( possessing plus and minus mirror plane symmetry ) of these diagrams can be constructed . The former occur in the A subspace , while the latter occur ...
Contents
Introduction | 1 |
An Overview of the Theory of лConjugated Polymers | 7 |
7 | 65 |
Copyright | |
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A.J. Heeger atoms Baeriswyl band band gap behaviour bipolarons bond alternation bond lengths calculations chain charged solitons Chem chemical shift cis-(CH conducting polymers configuration conjugated polymers Coulomb interactions coupling Cryst D.K. Campbell defects dependence dimerization discussed dopant doping doping levels e-e interactions electron correlation electron spin electron-electron interactions electron-phonon ENDOR energy excitations exciton experimental finite polyenes frequency function Hamiltonian Hartree-Fock hopping Hubbard model Hückel inter-chain kink lattice Lett linewidth magnetic Metals molecular molecules neutral solitons nonlinear nonlinear optical nuclear observed obtained one-dimensional optical absorption optical gap parameter peak Peierls Peierls-Hubbard model phonon Phys polarons polyacetylene polyenes polypyrrole polythiophene properties proton quantum quasi-particles Raman relaxation resonance Sect shown in Fig Solid State Commun spectra spectrum spin density SSH model structure susceptibility symmetry Synth temperature theoretical theory trans trans-(CH trans-polyacetylene transition triplet valence bond values Vardeny