2004
DOI: 10.1063/1.1765092
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Abstract: Intramolecular vibrational energy flow in excited bridged azulene-anthracene compounds is investigated by time-resolved pump-probe laser spectroscopy. The bridges consist of molecular chains and are of the type (CH(2))(m) with m up to 6 as well as (CH(2)OCH(2))(n) (n=1,2) and CH(2)SCH(2). After light absorption into the azulene S(1) band and subsequent fast internal conversion, excited molecules are formed where the vibrational energy is localized at the azulene side. The vibrational energy transfer through th… Show more

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Cited by 91 publications
(120 citation statements)
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“…In systems other than proteins, energy transport phenomena have been measured, e.g. through bridged azulene-anthracene compounds [18], small organic molecules in solution [19,20], or through model membranes [21,22].…”
Section: Introductionmentioning
confidence: 99%
“…In systems other than proteins, energy transport phenomena have been measured, e.g. through bridged azulene-anthracene compounds [18], small organic molecules in solution [19,20], or through model membranes [21,22].…”
Section: Introductionmentioning
confidence: 99%
“…Using the same DFT calculation, from harmonic vibrational analysis one can find ω τ of H 2 C n H 2 for different n. In Figure 4 we represented the related frequency ω τ for n = 5, 6,8,10,12,16,24,25. Since the choice of length L includes some arbitrariness (our choice is illustrated in Figure 3), the correct fit should include some length parameter B ∼ a, so that ω 2 τ = A/(B + L).…”
Section: Torsional Stiffness Calculationmentioning
confidence: 99%
“…The ballistic constantspeed transport has been observed in bridged azuleneanthracene compounds 10 , polyethylene glycol oligomers 2 , alkanes 8,9,11 , and perfluoroalkanes 12,13 and the theory describing this transport and its possible breakdown due to decoherence has been suggested 1,[14][15][16] .…”
Section: Introductionmentioning
confidence: 99%
“…Resolving the size effect of heat conduction in molecular chains has been the subject of recent experiments [6,7]. For example, Wang et al [8] has recently studied the kinetics of heat transfer from a metal substrate to self-assembled hydrocarbon monolayers of increasing sizes [9], concluding that heat travels ballistically along the chain [10].…”
Section: Introductionmentioning
confidence: 99%
“…In this paper we focus on the analogous problem of energy transfer in molecular chains connected at the two ends to thermal reservoirs (baths), maintained at distinct temperatures, realized by solids, metals, nanoparticles [13] or large molecular complexes [6]. As a simple model for the central object we consider a chain of several two-level units (spin 1/2 particles).…”
Section: Introductionmentioning
confidence: 99%