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 ...
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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 coefficient conducting polymers configuration conjugated polymers correlation Coulomb interactions coupling Cryst D.K. Campbell defects dependence dimerization discussed dopant doping doping levels e-e interactions effects electron spin electron-electron interactions electron-phonon ENDOR energy excitations exciton experimental Fermi finite polyenes frequency function ground Hamiltonian Hartree-Fock hopping Hubbard model Hückel independent-electron inter-chain kink lattice Lett linewidth magnetic metallic molecular neutral solitons nonlinear nonlinear optical nuclear observed obtained one-dimensional optical absorption optical gap pair 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 soliton spectra spectrum spin density SSH model structure susceptibility symmetry Synth temperature theoretical theory trans trans-(CH trans-polyacetylene transition V₁ valence bond values Vardeny