Conjugated Conducting Polymers |
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Page 261
4 Electron Spin Relaxation For the electron spin - lattice relaxation rate T , ' in
trans - ( CH ) , it has been reported that 1 , ~ w , - 1 / 2 ( Wc : ESR frequency ) ,
which was observed in the NMR case ( 5 . 154 , 155 ] ; the ESR linewidth also
follows ...
4 Electron Spin Relaxation For the electron spin - lattice relaxation rate T , ' in
trans - ( CH ) , it has been reported that 1 , ~ w , - 1 / 2 ( Wc : ESR frequency ) ,
which was observed in the NMR case ( 5 . 154 , 155 ] ; the ESR linewidth also
follows ...
Page 278
3 NMR Results The dopant - induced cis - trans isomerization in ( CH ) , has been
investigated from measurements of the proton second moments M2 [ 5 . 51 - 53 ,
239 ] . The second moment for undoped cis - ( CH ) , is larger by a few Gauss ...
3 NMR Results The dopant - induced cis - trans isomerization in ( CH ) , has been
investigated from measurements of the proton second moments M2 [ 5 . 51 - 53 ,
239 ] . The second moment for undoped cis - ( CH ) , is larger by a few Gauss ...
Page 279
Evolution of the cross - polarization magic angle spinning spectra of iodine -
doped ( a ) cis - and ( b ) trans - ( CH ) , at various doping levels . a For y = 0 , a
weak and partially resolved line at - 137 ppm in addition to the main peak at –
127 ...
Evolution of the cross - polarization magic angle spinning spectra of iodine -
doped ( a ) cis - and ( b ) trans - ( CH ) , at various doping levels . a For y = 0 , a
weak and partially resolved line at - 137 ppm in addition to the main peak at –
127 ...
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Contents
Introduction | 1 |
An Overview of the Theory of rConjugated Polymers | 7 |
References | 114 |
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 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