FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1964525596> ?p ?o ?g. }

• W1964525596 endingPage "466" @default.
• W1964525596 startingPage "457" @default.
• W1964525596 abstract "The electronic dephasing (spectral dynamics) and electron–phonon coupling of aluminum phthalocyanine tetrasulphonate (APT) in glassy films of ethanol and methanol were investigated by nonphotochemical hole burning over a broad temperature range, ∼5–100 K. Films formed by hyperquenching (∼106 K s−1) at 4.7 K were studied as well as films that were subsequently annealed at temperatures up to ∼170 K. Results are compared against those for APT in glassy water [Kim et al., J. Phys. Chem. 99, 7300 (1995); Reinot et al., J. Chem. Phys. 104, 793 (1996)]. As in the case of water, the linear coupling is weak with a Huang–Rhys factor S∼0.4 but the mean phonon frequencies for ethanol and methanol of 26 and 17 cm−1 are considerably lower than the 38 cm−1 value for water. These modes are assigned as pseudolocalized with significant amplitude (libration) localized on APT. Below about 8 K, the electronic dephasing/spectral diffusion is dominated by coupling to the tunneling intrinsic two-level systems of the glass. At higher temperatures the electronic dephasing is dominated by the exchange coupling mechanism, which derives from diagonal quadratic electron–phonon coupling. Here, for both ethanol and water, a pseudolocalized mode(s) at ∼50 cm−1 is operative. This frequency corresponds to a peak in the spectral density of the liquids which for water is due to the transverse acoustic mode. The results show that the modes responsible for linear and quadratic coupling are distinctly different. Implications of this for optical coherence loss in liquids are considered. Novel results from annealing experiments are reported and discussed in terms of the complex phase diagrams of ethanol and methanol. Formation of the glass from the supercooled liquid just above the melting point of a crystalline phase leads to a marked reduction (∼10×) in the homogeneous width of the zero-phonon hole at 4.7 K. This is interpreted in terms of a reduction in the density of intrinsic two-level systems due to reduced structural disorder of the glass formed from the supercooled liquid. As in the case of water, the highly efficient hole burning in glassy ethanol and methanol is observed to become highly inefficient upon formation of a crystalline phase as predicted by the Shu–Small mechanism for nonphotochemical hole burning. The close connection between this mechanism and Onsager’s inverse snowball effect for solvent dynamics around an instantaneously created point charge or dipole in a liquid is emphasized." @default.
• W1964525596 created "2016-06-24" @default.
• W1964525596 creator A5021026152 @default.
• W1964525596 creator A5044938671 @default.
• W1964525596 creator A5053551307 @default.
• W1964525596 date "1997-01-08" @default.
• W1964525596 modified "2023-10-18" @default.
• W1964525596 title "Electronic dephasing and electron–phonon coupling of aluminum phthalocyanine tetrasulphonate in hyperquenched and annealed glassy films of ethanol and methanol over a broad temperature range" @default.
• W1964525596 cites W1966038757 @default.
• W1964525596 cites W1967157009 @default.
• W1964525596 cites W1971945268 @default.
• W1964525596 cites W1979668715 @default.
• W1964525596 cites W1980775154 @default.
• W1964525596 cites W1980885037 @default.
• W1964525596 cites W1981195523 @default.
• W1964525596 cites W1981615802 @default.
• W1964525596 cites W1983463179 @default.
• W1964525596 cites W1993758547 @default.
• W1964525596 cites W2011077860 @default.
• W1964525596 cites W2013067162 @default.
• W1964525596 cites W2014243239 @default.
• W1964525596 cites W2014447642 @default.
• W1964525596 cites W2015169297 @default.
• W1964525596 cites W2025252462 @default.
• W1964525596 cites W2027921170 @default.
• W1964525596 cites W2029133059 @default.
• W1964525596 cites W2033181061 @default.
• W1964525596 cites W2034277456 @default.
• W1964525596 cites W2035459674 @default.
• W1964525596 cites W2036296141 @default.
• W1964525596 cites W2037515050 @default.
• W1964525596 cites W2041931011 @default.
• W1964525596 cites W2042919908 @default.
• W1964525596 cites W2047643863 @default.
• W1964525596 cites W2049438351 @default.
• W1964525596 cites W2051912265 @default.
• W1964525596 cites W2055088168 @default.
• W1964525596 cites W2055810188 @default.
• W1964525596 cites W2065415792 @default.
• W1964525596 cites W2066940896 @default.
• W1964525596 cites W2070793813 @default.
• W1964525596 cites W2071670597 @default.
• W1964525596 cites W2077134281 @default.
• W1964525596 cites W2087966232 @default.
• W1964525596 cites W2094908945 @default.
• W1964525596 cites W2098145441 @default.
• W1964525596 cites W2101905179 @default.
• W1964525596 cites W2125926160 @default.
• W1964525596 cites W2131415756 @default.
• W1964525596 cites W2133013032 @default.
• W1964525596 cites W2139029442 @default.
• W1964525596 cites W2164221313 @default.
• W1964525596 cites W2173306066 @default.
• W1964525596 cites W3151586094 @default.
• W1964525596 doi "https://doi.org/10.1063/1.473387" @default.
• W1964525596 hasPublicationYear "1997" @default.
• W1964525596 type Work @default.
• W1964525596 sameAs 1964525596 @default.
• W1964525596 citedByCount "42" @default.
• W1964525596 countsByYear W19645255962013 @default.
• W1964525596 countsByYear W19645255962014 @default.
• W1964525596 countsByYear W19645255962023 @default.
• W1964525596 crossrefType "journal-article" @default.
• W1964525596 hasAuthorship W1964525596A5021026152 @default.
• W1964525596 hasAuthorship W1964525596A5044938671 @default.
• W1964525596 hasAuthorship W1964525596A5053551307 @default.
• W1964525596 hasConcept C113196181 @default.
• W1964525596 hasConcept C121332964 @default.
• W1964525596 hasConcept C131584629 @default.
• W1964525596 hasConcept C185592680 @default.
• W1964525596 hasConcept C191897082 @default.
• W1964525596 hasConcept C192562407 @default.
• W1964525596 hasConcept C24169881 @default.
• W1964525596 hasConcept C26873012 @default.
• W1964525596 hasConcept C43617362 @default.
• W1964525596 hasConcept C49023278 @default.
• W1964525596 hasConceptScore W1964525596C113196181 @default.
• W1964525596 hasConceptScore W1964525596C121332964 @default.
• W1964525596 hasConceptScore W1964525596C131584629 @default.
• W1964525596 hasConceptScore W1964525596C185592680 @default.
• W1964525596 hasConceptScore W1964525596C191897082 @default.
• W1964525596 hasConceptScore W1964525596C192562407 @default.
• W1964525596 hasConceptScore W1964525596C24169881 @default.
• W1964525596 hasConceptScore W1964525596C26873012 @default.
• W1964525596 hasConceptScore W1964525596C43617362 @default.
• W1964525596 hasConceptScore W1964525596C49023278 @default.
• W1964525596 hasIssue "2" @default.
• W1964525596 hasLocation W19645255961 @default.
• W1964525596 hasOpenAccess W1964525596 @default.
• W1964525596 hasPrimaryLocation W19645255961 @default.
• W1964525596 hasRelatedWork W1563773829 @default.
• W1964525596 hasRelatedWork W1662176598 @default.
• W1964525596 hasRelatedWork W2005759394 @default.
• W1964525596 hasRelatedWork W2077448366 @default.
• W1964525596 hasRelatedWork W2134715845 @default.
• W1964525596 hasRelatedWork W2166611266 @default.
• W1964525596 hasRelatedWork W2167280939 @default.
• W1964525596 hasRelatedWork W2575784660 @default.

• next