Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 73
... Valence Bond Interpretation : Barrier to Resonance . Since the discovery of high - temperature superconductivity , there has been a resurgence of interest in valence bond theory , originally formulated by Pauling [ 2.235 ] . In the ...
... Valence Bond Interpretation : Barrier to Resonance . Since the discovery of high - temperature superconductivity , there has been a resurgence of interest in valence bond theory , originally formulated by Pauling [ 2.235 ] . In the ...
Page 74
... valence bond diagrams for hexatriene : a the covalent diagram corresponding to the Kekulé structure , b covalent diagrams involving long bonds , c some ionic diagrams involving double occupancies ( denoted by x ) and vacancies ( denoted ...
... valence bond diagrams for hexatriene : a the covalent diagram corresponding to the Kekulé structure , b covalent diagrams involving long bonds , c some ionic diagrams involving double occupancies ( denoted by x ) and vacancies ( denoted ...
Page 124
... valence linear chain complexes . J. Phys . C 21 , 339–356 ( 1988 ) 2.226 ... bond alternation in poly- enes : normal state , charge - density waves and ... Bond lengths in cyclic polyenes C2n H2n . A reexamina- tion from the valence ...
... valence linear chain complexes . J. Phys . C 21 , 339–356 ( 1988 ) 2.226 ... bond alternation in poly- enes : normal state , charge - density waves and ... Bond lengths in cyclic polyenes C2n H2n . A reexamina- tion from the valence ...
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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