## Conjugated Conducting Polymers |

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Page 103

A remarkably simple but powerful theory both for the Raman

homogeneous system and for the dopant ... IR - active vibrational

commonly referred to as the amplitude

Horovitz [ 2 .

A remarkably simple but powerful theory both for the Raman

**modes**of thehomogeneous system and for the dopant ... IR - active vibrational

**modes**,commonly referred to as the amplitude

**mode**theory , has been proposed byHorovitz [ 2 .

Page 187

The electron - phonon coupling constant was adjusted to bring the C - C and C =

C stretching

1080 cm - 1 . The coupling constant was found to be 8 eV / A , implying a Peierls

...

The electron - phonon coupling constant was adjusted to bring the C - C and C =

C stretching

**modes**into agreement with the principal Raman lines at 1470 and1080 cm - 1 . The coupling constant was found to be 8 eV / A , implying a Peierls

...

Page 198

22 ) , i . e . the relation D ( w ) = ( p – 1 ) - 1 , yield the frequencies of the additional

infrared active

motion of the charge and are independent of the particular structure of the defect .

22 ) , i . e . the relation D ( w ) = ( p – 1 ) - 1 , yield the frequencies of the additional

infrared active

**modes**. These**modes**are associated with the centre of massmotion of the charge and are independent of the particular structure of the defect .

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### Contents

Introduction | 1 |

An Overview of the Theory of rConjugated Polymers | 7 |

IndependentElectron | 17 |

Copyright | |

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### Common terms and phrases

absorption addition applied approach approximation atoms band behaviour bipolarons bond bond alternation calculations carriers chain charged chemical concentration conductivity configuration conjugated polymers correlation corresponding Coulomb Coulomb interactions coupling decreases defects density dependence described determined dimerization discussed dopant doping effects electron electron-electron electron-phonon ENDOR energy excitations expected experimental experiments field finite frequency function give ground Hamiltonian hopping Hubbard hyperfine important increase indicated interactions interpretation involving lattice leads length Lett limit magnetic materials measurements metallic methods modes motion neutral nuclear observed obtained one-dimensional optical pair parameter peak phonon Phys physical polarons polyacetylene polyenes polymers position properties range relaxation resonance respect samples Sect shift shown shows similar single Solid soliton spectra spectrum spin structure studies symmetry Synth temperature theoretical theory trans-(CH transition units valence values whereas