Matches in SemOpenAlex for { <https://semopenalex.org/work/W1987125614> ?p ?o ?g. }
- W1987125614 abstract "Diffusion of perdeuterated tempone (PDT) in various nonpolar hydrocarbon solvents on both the large and microscopic scales is examined through electron paramagnetic resonance spectroscopy. Spectral line broadening and hyperfine spacing are measured in order to extract both the Heisenberg spin-exchange rate as well as the average recollision times between spin-probe pairs. Probe recollision is responsible for a linear component to the dependence of the line shift on spectral broadening which has been identified in recent years. The present study extends the work of a previous paper by Kurban et al. [J. Chem. Phys. 129, 064501 (2008)], in which it was reported that recollision rates for PDT formed a common curve across n-alkanes when plotted with respect to free volume and to isothermal compressibility. It is now found that such common curves occur within distinct chemical families, in particular, the alkane and aromatic groups. Within each chemical family, the spin probe recollision rate correlates with free volume and compressibility independently of the geometry of the particular solvent. All solvents show significantly enhanced recollisional diffusion over the Stokes–Einstein (SE) prediction at high temperatures. The spin-exchange rate forms a common curve with respect to T/η for all alkanes except cyclohexane and another common curve in all three aromatic compounds. It is reasoned that although all spin-exchange rates are near to the SE prediction, the semblance of hydrodynamic behavior is superficial and arises incidentally from mathematical cancellation of terms in a generalized diffusion coefficient. As a collision pair coexists for a time within a solvation shell, the recollision time places a lower limit on the lifetime of the solvent cage. Although molecular dynamics simulations conducted thus far have yielded cage lifetimes lower than the measured recollision times, this is attributable to the fact that such simulations have mostly examined cage configurations too small to harbor a spin-exchange encounter, and is also likely due to restrictive mathematical definitions of cage lifetimes that are employed in such simulations." @default.
- W1987125614 created "2016-06-24" @default.
- W1987125614 creator A5082232249 @default.
- W1987125614 date "2009-03-09" @default.
- W1987125614 modified "2023-09-23" @default.
- W1987125614 title "Experimental correlation of nitroxide recollision spin exchange with free volume and compressibility in alkane and aromatic compounds" @default.
- W1987125614 cites W1563508101 @default.
- W1987125614 cites W1566217471 @default.
- W1987125614 cites W1625406381 @default.
- W1987125614 cites W1964175854 @default.
- W1987125614 cites W1964349459 @default.
- W1987125614 cites W1965476046 @default.
- W1987125614 cites W1967443332 @default.
- W1987125614 cites W1969658138 @default.
- W1987125614 cites W1969702496 @default.
- W1987125614 cites W1971137290 @default.
- W1987125614 cites W1977024715 @default.
- W1987125614 cites W1978448270 @default.
- W1987125614 cites W1979705179 @default.
- W1987125614 cites W1981123132 @default.
- W1987125614 cites W1981286956 @default.
- W1987125614 cites W1981544292 @default.
- W1987125614 cites W1988580810 @default.
- W1987125614 cites W1991924155 @default.
- W1987125614 cites W1994069927 @default.
- W1987125614 cites W1995769851 @default.
- W1987125614 cites W1996016803 @default.
- W1987125614 cites W2000688016 @default.
- W1987125614 cites W2003214443 @default.
- W1987125614 cites W2010342236 @default.
- W1987125614 cites W2014187117 @default.
- W1987125614 cites W2016315868 @default.
- W1987125614 cites W2018249864 @default.
- W1987125614 cites W2032609184 @default.
- W1987125614 cites W2035124992 @default.
- W1987125614 cites W2038052111 @default.
- W1987125614 cites W2038321943 @default.
- W1987125614 cites W2039085700 @default.
- W1987125614 cites W2047723546 @default.
- W1987125614 cites W2048612893 @default.
- W1987125614 cites W2051298384 @default.
- W1987125614 cites W2051339362 @default.
- W1987125614 cites W2052290582 @default.
- W1987125614 cites W2062910673 @default.
- W1987125614 cites W2062997669 @default.
- W1987125614 cites W2063891315 @default.
- W1987125614 cites W2065029125 @default.
- W1987125614 cites W2065893294 @default.
- W1987125614 cites W2068535037 @default.
- W1987125614 cites W2069487913 @default.
- W1987125614 cites W2074536994 @default.
- W1987125614 cites W2075233208 @default.
- W1987125614 cites W2075782362 @default.
- W1987125614 cites W2077489965 @default.
- W1987125614 cites W2077795708 @default.
- W1987125614 cites W2077898467 @default.
- W1987125614 cites W2087651898 @default.
- W1987125614 cites W2088310707 @default.
- W1987125614 cites W2089359933 @default.
- W1987125614 cites W2090183904 @default.
- W1987125614 cites W2090751051 @default.
- W1987125614 cites W2091842662 @default.
- W1987125614 cites W2107216861 @default.
- W1987125614 cites W2128638394 @default.
- W1987125614 cites W2145570721 @default.
- W1987125614 cites W2160702781 @default.
- W1987125614 cites W2313769759 @default.
- W1987125614 doi "https://doi.org/10.1063/1.3082510" @default.
- W1987125614 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19292536" @default.
- W1987125614 hasPublicationYear "2009" @default.
- W1987125614 type Work @default.
- W1987125614 sameAs 1987125614 @default.
- W1987125614 citedByCount "7" @default.
- W1987125614 countsByYear W19871256142012 @default.
- W1987125614 countsByYear W19871256142013 @default.
- W1987125614 countsByYear W19871256142021 @default.
- W1987125614 crossrefType "journal-article" @default.
- W1987125614 hasAuthorship W1987125614A5082232249 @default.
- W1987125614 hasConcept C113196181 @default.
- W1987125614 hasConcept C121332964 @default.
- W1987125614 hasConcept C161790260 @default.
- W1987125614 hasConcept C178790620 @default.
- W1987125614 hasConcept C185592680 @default.
- W1987125614 hasConcept C2776066709 @default.
- W1987125614 hasConcept C2777207669 @default.
- W1987125614 hasConcept C2778237882 @default.
- W1987125614 hasConcept C2781327020 @default.
- W1987125614 hasConcept C41999313 @default.
- W1987125614 hasConcept C42704618 @default.
- W1987125614 hasConcept C69357855 @default.
- W1987125614 hasConcept C84655787 @default.
- W1987125614 hasConcept C97355855 @default.
- W1987125614 hasConceptScore W1987125614C113196181 @default.
- W1987125614 hasConceptScore W1987125614C121332964 @default.
- W1987125614 hasConceptScore W1987125614C161790260 @default.
- W1987125614 hasConceptScore W1987125614C178790620 @default.
- W1987125614 hasConceptScore W1987125614C185592680 @default.
- W1987125614 hasConceptScore W1987125614C2776066709 @default.
- W1987125614 hasConceptScore W1987125614C2777207669 @default.
- W1987125614 hasConceptScore W1987125614C2778237882 @default.