## Conjugated Conducting Polymers |

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Page 31

29 ) the equilibrium bond

. ( 2 . 34 ) dr dr The

polyacetylene . Note that since dt / dr is less than zero ( the hopping is a ...

29 ) the equilibrium bond

**length**ro is determined by the solution to dt - - 2p0 = = 0. ( 2 . 34 ) dr dr The

**length**r , can be identified with the average bond**length**ofpolyacetylene . Note that since dt / dr is less than zero ( the hopping is a ...

Page 34

rence

scale of the nonlinear excitations of the theory . If & » a , details on the scale of

the lattice spacing a are not expected to be crucial , and different polymers may ...

rence

**length**will determine not only the range of influence of defects but also thescale of the nonlinear excitations of the theory . If & » a , details on the scale of

the lattice spacing a are not expected to be crucial , and different polymers may ...

Page 80

defect with equal bond

carbon atoms . It is therefore not clear ... Even more importantly , the calculated

spin density ratios are strongly chain -

...

defect with equal bond

**lengths**and spin densities of equal magnitudes on all thecarbon atoms . It is therefore not clear ... Even more importantly , the calculated

spin density ratios are strongly chain -

**length**dependent [ 2 . 251 ] , and therefore...

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### Contents

Introduction | 1 |

An Overview of the Theory of rConjugated Polymers | 7 |

References | 114 |

Copyright | |

7 other sections not shown

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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 contribution correlation corresponding Coulomb Coulomb interactions coupling decreases defects density dependence described determined dimerization discussed dopant doping effects electron electron-electron energy excitations expected experimental experiments field finite frequency function give ground Hamiltonian hopping Hubbard important increase indicated interactions interpretation involving lattice leads length Lett limit localized magnetic materials measurements metallic methods modes molecules motion neutral nuclear observed obtained optical pair parameter peak phonon Phys Physics polarons polyacetylene polyenes polymers position properties range relaxation resonance respect samples Sect separation shift shown shows similar single soliton spectra spectrum spin structure studies symmetry Synth temperature theoretical theory trans-(CH transition units valence values whereas