Pure intermolecular vibrational relaxation of the OH bending mode of water molecules

2004 ◽  
Vol 120 (18) ◽  
pp. 8866-8867 ◽  
Author(s):  
Gerhard Seifert ◽  
Toralf Patzlaff ◽  
Heinrich Graener
Keyword(s):  
Vibrational Relaxation ◽  
Water Molecules ◽  
Bending Mode

scholarly journals Negligible cation effect on the vibrational relaxation dynamics of water molecules in NaClO4 and LiClO4 aqueous electrolyte solutions

RSC Advances ◽  
2017 ◽  
Vol 7 (82) ◽  
pp. 52111-52117 ◽  
Author(s):  
Qianshun Wei ◽  
Dexia Zhou ◽  
Hongtao Bian
Keyword(s):  
Aqueous Solutions ◽  
Vibrational Relaxation ◽  
Aqueous Electrolyte ◽  
Electrolyte Solutions ◽  
Water Molecules ◽  
Relaxation Dynamics ◽  
Cation Effects ◽  
Aqueous Electrolyte Solutions ◽  
Cation Effect

Negligible cation effects on the vibrational relaxation dynamics of water molecules in NaClO4 and LiClO4 aqueous solutions.

Vibrational relaxation of the H[sub 2]O bending mode in liquid water

2004 ◽  
Vol 121 (24) ◽  
pp. 12143 ◽  
Author(s):  
Olaf F. A. Larsen ◽  
Sander Woutersen
Keyword(s):  
Liquid Water ◽  
Vibrational Relaxation ◽  
Bending Mode

Measurement of the relaxation frequency of the asymmetric stretching mode of carbon dioxide

1969 ◽  
Vol 35 (1) ◽  
pp. 171-183 ◽  
Author(s):  
J. P. Hodgson ◽  
R. J. Hine
Keyword(s):  
Carbon Dioxide ◽  
Shock Waves ◽  
Shock Tube ◽  
Vibrational Relaxation ◽  
Thermal Emission ◽  
Relaxation Frequency ◽  
Rate Of Change ◽  
Density Measurements ◽  
Bending Mode ◽  
Made In

The vibrational relaxation frequency of carbon dioxide has been determined by measuring the rate of change of thermal emission in shock waves near 4±3μ. This method of measuring the relaxation frequency depends mainly on the degree of excitation of the asymmetric stretching mode of the molecule, and the results are compared with those of earlier density measurements made in the same shock tube. The gas samples used are not optically thin, and it is shown that self-absorption can be taken into account. The results imply that the relaxation frequency of the asymmetric stretching mode is about 70% of that of the bending mode.

Vibrational Relaxation of the Bending Mode of HDO in Liquid D2O

2005 ◽  
Vol 109 (24) ◽  
pp. 5303-5306 ◽  
Author(s):  
Pavol Bodis ◽  
Olaf F. A. Larsen ◽  
Sander Woutersen
Keyword(s):  
Vibrational Relaxation ◽  
Bending Mode

scholarly journals Vibrational Relaxation of the 2ν5 Overtone of CDCl3 Following Tea CO2 Laser Excitation of the ν4 Mode

1994 ◽  
Vol 14 (4) ◽  
pp. 191-200 ◽  
Author(s):  
M. A. Vazquez ◽  
M. L. Azcárate ◽  
E. J. Quel ◽  
L. Doyennette ◽  
C. Rinaldi ◽  
...  
Keyword(s):  
Time Constant ◽  
Rate Constant ◽  
Fluorescence Intensity ◽  
Time Variation ◽  
Vibrational Relaxation ◽  
Laser Excitation ◽  
Fluorescence Decay ◽  
Tea Co2 Laser ◽  
Bending Mode ◽  
Fast Rise

The time variation of the 2ν5 fluorescence intensity was measured in CDCl3 excited in the ν4 C–D bending mode by a TEA CO2 laser operating on the 10P(48) line. A fast rise of the fluorescence, with a time constant ≤ 1 μs Torr, was first observed, showing that a fast equilibration of population occurs between the ν4 and ν5 modes through a ν4 ↔ ν5 Coriolis-assisted intermode transfer and a ν5 ↔ 2ν5 near-resonant ladder-climbing process. Then a first fast fluorescence decay was observed and attributed to a (ν4, ν5) → ν2 intermode transfer with a rate constant of (7.10 ± 1.13)ms-1 Torr-1. At last, a much slower decay, with a rate constant of 0.111 ± 0.015 ms-1 Torr-1, results from the less efficient intermode transfer and V–T,R deexcitation processes involving the ν3 and ν6 states, and which compete to relax the gas to a thermodynamic equilibrium.

The effect of myoglobin crowding on the dynamics of water: an infrared study

2014 ◽  
Vol 16 (41) ◽  
pp. 22841-22852 ◽  
Author(s):  
S. Le Caër ◽  
G. Klein ◽  
D. Ortiz ◽  
M. Lima ◽  
S. Devineau ◽  
...  
Keyword(s):  
Vibrational Relaxation ◽  
Vibrational Properties ◽  
Water Molecules ◽  
Infrared Study ◽  
Neat Water ◽  
Liquid Transition ◽  
Solid Liquid

The vibrational properties (anharmonicity, vibrational relaxation lifetime…) of water in crowded myoglobin solutions remain the same as that in neat water but the collective properties of the water molecules are significantly affected by the protein (orientational time, solid–liquid transition).

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