Results 251 to 260 of about 2,383,695 (299)

Time-resolved studies of solvation

AIP Conference Proceedings, 1988
Solvent dynamics in alcohols are measured by examining the time dependent Stokes shift of the emission from the twisted intramolecular charge transfer state of bis(4‐(dimethylamino)phenyl) sulphone (DMAPS). The solvation times deviate from the dielectric continuum prediction of τL, the longitudinal relaxation time of the solvent, but generally fall ...
John D. Simon, null Shyh-Gang Su
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Time-resolved studies of individual molecular rotors

Journal of Physics: Condensed Matter, 2010
Thioether molecular rotors show great promise as nanoscale models for exploring the fundamental limits of thermally and electrically driven molecular rotation. By using time-resolved measurements which increase the time resolution of the scanning tunneling microscope we were able to record the dynamics of individual thioether molecular rotors as a ...
April D, Jewell, Heather L, Tierney, Ashleigh E, Baber, Erin V, Iski, Michael M, Laha, E Charles H, Sykes   +5 more
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Time-Resolved Infrared (TRIR) Studies of Oxycarbonylnitrenes

The Journal of Organic Chemistry, 2016
N-Ethyloxycarbonyl-S,S-dibenzothiphene sulfilimine and N-t-butyloxycarbonyl-S,S-dibenzothiphene sulfilimine have been utilized as precursors to ethoxycarbonylnitrene and t-butyloxycarbonylnitrene. B3LYP/6-31G(d) calculations predict triplet ground states for both oxycarbonylnitrenes, albeit by small margins.
Tyler A, Chavez, Yonglin, Liu, John P, Toscano   +2 more
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Nanosecond time-resolved IR study of thiobenzoylnitrene

Physical Chemistry Chemical Physics, 2012
Nanosecond time-resolved infrared (TRIR) spectroscopy has been used to observe singlet thiobenzoylnitrene at 1740 cm(-1) upon photolysis of 5-phenyl-1,2,3,4-thiatriazole in acetonitrile and dichloromethane. Consistent with the experimental observations, thiobenzoylnitrene is predicted by B3LYP/6-31G* calculations to have a singlet ground state with an ...
Yonglin, Liu, Anthony S, Evans, John P, Toscano   +2 more
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Stain Effects Studied by Time-Resolved Infrared Imaging

Analytical Chemistry, 2008
Pattern formation in evaporating colloidal droplets is an important phenomenon that is commonly observed in several solute-solvent systems; this is also an emerging technique for obtaining fine patterning through controlled conditions of drying. After evaporation of the solvent a ring-like pattern remains on the solid substrate under the condition of ...
Innocenzi, P., Malfatti, L., Piccinini, M., Grosso, D., Marcelli, A.   +4 more
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Time-resolved photoluminescence study of InSe

Solid State Communications, 1985
Time-resolved photoluminescence spectra of InSe at superfluid He temperatures show that one broad luminescence feature centred at 1315meV is due to donor-acceptor pair recombination whereas other, lower energy broad bands are not. The sharp lines around 1333meV were identified as bound exciton luminescence from their transient behaviour.
J.L. Brebner, T. Steiner, M.L.W. Thewalt
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Multifunctional fluorescent diarylethene: time-resolved study of photochemistry

Physical Chemistry Chemical Physics, 2023
A study of luminescence and photochromic properties of a diarylethene with a push–pull system between carbonyl and dimethylamino groups, was performed using time-resolved methods.
Veronica V. Semionova, Ivan P. Pozdnyakov, Vjacheslav P. Grivin, Victor F. Plyusnin, Yuri P. Tsentalovich, Valerii Z. Shirinian, Alexei A. Melnikov, Sergei V. Chekalin, Andrey G. Lvov, Evgeni M. Glebov   +9 more
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A Time-Resolved Spectroscopic Study on Peptide Folding

2010
Generation of nucleation centers, such as the helix-turn-helix motif, is one of the possible mechanisms of protein folding. Therefore, knowledge of the kinetics of formation of such locally structured domains may be important for discriminating different folding pathways.
PISPISA, BASILIO, GATTO, EMANUELA, BOCCHINFUSO, GIANFRANCO, PALLESCHI, ANTONIO, STELLA, LORENZO, VENANZI, MARIANO, Formaggio, F, Toniolo, C.   +7 more
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Time resolved crystallographic studies [PDF]

, 2010
X-ray crystallography is an important analytical method for the characterisation of materials in the solid state. During the last decade, it has become important as a tool in the new field of photocrystallography. This combines both crystallography and photochemistry and is used to monitor the formation of light-induced metastable and transient species,
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Time Resolved Studies Of Adsorbed Species

SPIE Proceedings, 1985
A time-resolved Fourier transform IR study of ethyne adsorbed on ZnNaA zeolite yields results very different from those reported for related systems. Initially two species (A and B) are formed by the interaction of C2H2 with the cations. Whereas species A (π-bonded C2H2) was found to be removed immediately on evacuation, species B (probably Zn ...
J. Howard, J. M. Nicol
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