Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 31
... length r 。 is determined by the solution to dt dv dr 2Po = = 0 . dr ( 2.34 ) The length ro can be identified with the average bond length of polyacetylene . Note that since dt / dr is less than zero ( the hopping is a decreasing ...
... length r 。 is determined by the solution to dt dv dr 2Po = = 0 . dr ( 2.34 ) The length ro can be identified with the average bond length of polyacetylene . Note that since dt / dr is less than zero ( the hopping is a decreasing ...
Page 34
... length . In this second approach , it is natural to use the observed bond orders ( p ; ) and bond lengths ( r ; ) for different π - electron systems to determine 2. Equations ( 2.34 ) and ( 2.35 ) imply the following linear relationship ...
... length . In this second approach , it is natural to use the observed bond orders ( p ; ) and bond lengths ( r ; ) for different π - electron systems to determine 2. Equations ( 2.34 ) and ( 2.35 ) imply the following linear relationship ...
Page 80
... length dependent [ 2.251 ] , and therefore a complete analysis of the chain - length dependence is required before a realistic comparison with the data can be made . Several of the Hartree - Fock studies do not mention which chain lengths ...
... length dependent [ 2.251 ] , and therefore a complete analysis of the chain - length dependence is required before a realistic comparison with the data can be made . Several of the Hartree - Fock studies do not mention which chain lengths ...
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