We have studied some viirational-relaxation effects in liquid and solid As&. Experimentally, we measured the Raman ~1 <symmetry species Al) band at 160 K and 54 K. Our theoreticalapproach in analyzing the data makes use of the memoryfunctions technique to result in a clear physical description of th
Vibrational relaxation and vibrational diffusion rates in liquid and solid co
โ Scribed by N. Legay-Sommaire; F. Legay
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 497 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Ohwrvation~ of the infrared fluorcsccncc of (quid or solid CO following; cxcitdtlon by :I frcqncncy-doublcti TCA CO? laser rwed ;I non-c?rponcntiJ decay curve for a pure CO saalplc. Vrbration,d rcld?rdtwn ant1 vlbrati0n.d dlffuslon conrtants wcrc dctcrmincd by ancllysing thcsc curves III the temperature range GG-79 K.
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The vibrationaI energy relaxation rates of the liquid nitrogen-CO system have been measured by optically pumping the collision-induced fundamentalvibrational absorption band of liquid Nz with the output of an HBr TEA laser. A rad2atively dominated value of 56 f 10 s is found for the intrinsic nitrog
An excitation spectrum of CO+ (X \*S + A \* ll) fluorescence hds been obtamcd using a tun.lblc dye laser. Sclcctiw lawr excitation and fluorescence detectlon ywlds information on the 1011's vibrational relaxation. Molecular ions arc highly reactive species and have under normal circumstances very sh
111~ vibratwnal rclauation tmw of the '\*Hz molcculc hat been measured as ti L nction 01 density and tcmpcraturc bctwccn 25 and 40 K m the gas md Iquid phase, and at fixed density III the solid and liquid near the fusion point.