Conjugated conducting polymers

A.J. Heeger AsF5 atoms band band gap behaviour bipolarons bond alternation bond lengths calculations CH)x chain charged solitons Chem chemical shift coefficient conducting polymers configuration conjugated polymers correlation Coulomb interactions coupling Cryst decreases defects dependence dimerization discussed dopant dopant concentration doping doping levels e-e interactions effects electron spin electron-electron interactions electron-phonon ENDOR energy excitations exciton experimental finite polyenes frequency function Hamiltonian Hartree-Fock Heeger Hiickel hopping Hubbard model hyperfine interactions inter-chain kink lattice Lett linewidth magnetic Metals molecular neutral solitons nonlinear 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 soliton spectra spectrum spin density SSH model structure symmetry Synth temperature theoretical theory trans-(CH)x transition triplet valence bond values Vardeny