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• W2893870966 abstract "Dielectric relaxation (DR) measurements in the frequency window 0.2 ≤ ν(GHz) ≤ 50 for deep eutectic solvents (DESs) made of acetamide (CH3CONH2) and urea (NH2CONH2) with the general composition, [f CH3CONH2 + (1 - f) NH2CONH2] at f = 0.6 and 0.7, reveal three distinct relaxation time scales-τ1 ∼ 120 ps, τ2 ∼ 40 ps, and τ3 ∼ 5 ps. Qualitatively similar time scales have been observed for DR of neat molten urea, whereas the reported DR for neat molten acetamide in the same frequency window reflects two relaxation processes with no trace of ∼100 ps time scale. This slowest DR time scale (τ1) resembles closely to the long-time constant of the simulated structural H-bond relaxation (CHB(t)) involving urea pairs. Similarity in activation energies estimated from the temperature dependent DR measurements (335 ≤ T/K ≤ 363) and structural H-bond relaxations indicates that the structural H-bond relaxation overwhelmingly dominates the slowest DR relaxation in these DESs. Simulated collective reorientational correlation functions (C ℓ (t)), on the other hand, suggest that the second slower time scale (∼40 ps) derives contributions from both the single particle orientation dynamics and structural H-bond relaxation, leaving no role for hydrodynamic molecular rotations. The sub-10 ps DR time scale has been found to be connected to the fast reorientation dynamics of the component molecules (acetamide or urea). Fractional viscosity dependence for the longest DR times, τDR∝η/Tp , has been observed for these DESs with the fraction power p = 0.7. Subsequently, the temporal heterogeneity aspects of these media have been investigated by examining the simulated particle motion characteristics and substantiated by estimating the dynamically correlated time scales and length-scales through simulations of four-point susceptibilities and density correlations. These estimated dynamical time scales and length-scales assist in explaining the different inferences regarding solution heterogeneity drawn from different measurements on these DESs." @default.
• W2893870966 created "2018-10-05" @default.
• W2893870966 creator A5000786443 @default.
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• W2893870966 creator A5035815922 @default.
• W2893870966 date "2018-09-24" @default.
• W2893870966 modified "2023-10-16" @default.
• W2893870966 title "Dielectric relaxation in acetamide + urea deep eutectics and neat molten urea: Origin of time scales via temperature dependent measurements and computer simulations" @default.
• W2893870966 cites W1482730407 @default.
• W2893870966 cites W1564331445 @default.
• W2893870966 cites W1776656534 @default.
• W2893870966 cites W1967410318 @default.
• W2893870966 cites W1968417568 @default.
• W2893870966 cites W1972922596 @default.
• W2893870966 cites W1974407197 @default.
• W2893870966 cites W1976828803 @default.
• W2893870966 cites W1978498560 @default.
• W2893870966 cites W1980119708 @default.
• W2893870966 cites W1989919915 @default.
• W2893870966 cites W1992672934 @default.
• W2893870966 cites W1994139775 @default.
• W2893870966 cites W1997207764 @default.
• W2893870966 cites W1997460046 @default.
• W2893870966 cites W1999565271 @default.
• W2893870966 cites W1999700409 @default.
• W2893870966 cites W2003329164 @default.
• W2893870966 cites W2003656771 @default.
• W2893870966 cites W2003949305 @default.
• W2893870966 cites W2007377147 @default.
• W2893870966 cites W2010061348 @default.
• W2893870966 cites W2012214628 @default.
• W2893870966 cites W2015331718 @default.
• W2893870966 cites W2021501868 @default.
• W2893870966 cites W2035266068 @default.
• W2893870966 cites W2035605408 @default.
• W2893870966 cites W2035687084 @default.
• W2893870966 cites W2035704315 @default.
• W2893870966 cites W2039388211 @default.
• W2893870966 cites W2044085950 @default.
• W2893870966 cites W2045557804 @default.
• W2893870966 cites W2045933761 @default.
• W2893870966 cites W2051160639 @default.
• W2893870966 cites W2052204880 @default.
• W2893870966 cites W2053308177 @default.
• W2893870966 cites W2053841096 @default.
• W2893870966 cites W2054947925 @default.
• W2893870966 cites W2055088493 @default.
• W2893870966 cites W2057135030 @default.
• W2893870966 cites W2057477511 @default.
• W2893870966 cites W2057613108 @default.
• W2893870966 cites W2060327846 @default.
• W2893870966 cites W2061178260 @default.
• W2893870966 cites W2062281479 @default.
• W2893870966 cites W2066333719 @default.
• W2893870966 cites W2067827857 @default.
• W2893870966 cites W2073733852 @default.
• W2893870966 cites W2073775843 @default.
• W2893870966 cites W2074420714 @default.
• W2893870966 cites W2080023000 @default.
• W2893870966 cites W2080273899 @default.
• W2893870966 cites W2081693079 @default.
• W2893870966 cites W2083373921 @default.
• W2893870966 cites W2083793584 @default.
• W2893870966 cites W2084189717 @default.
• W2893870966 cites W2087277033 @default.
• W2893870966 cites W2088198801 @default.
• W2893870966 cites W2091870129 @default.
• W2893870966 cites W2094432143 @default.
• W2893870966 cites W210250934 @default.
• W2893870966 cites W2105324285 @default.
• W2893870966 cites W2111115175 @default.
• W2893870966 cites W2112356174 @default.
• W2893870966 cites W2124985647 @default.
• W2893870966 cites W2133982938 @default.
• W2893870966 cites W2142379002 @default.
• W2893870966 cites W2156857288 @default.
• W2893870966 cites W2167009502 @default.
• W2893870966 cites W2170797104 @default.
• W2893870966 cites W2305106354 @default.
• W2893870966 cites W2317986399 @default.
• W2893870966 cites W2318808307 @default.
• W2893870966 cites W2319128214 @default.
• W2893870966 cites W2329989147 @default.
• W2893870966 cites W2334944125 @default.
• W2893870966 cites W2414225408 @default.
• W2893870966 cites W2418735666 @default.
• W2893870966 cites W2419066033 @default.
• W2893870966 cites W2530024841 @default.
• W2893870966 cites W2547348805 @default.
• W2893870966 doi "https://doi.org/10.1063/1.5040071" @default.
• W2893870966 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30278663" @default.
• W2893870966 hasPublicationYear "2018" @default.
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