Rotational mechanism for vibrational relaxation in rigid media
โ Scribed by Karl F. Freed; Horia Metiu
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 425 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
Rcceivcd 10 hlarch 1977 WC concldcr the contrlbutlon of rnolc~ular rotntlon to tbc vlbrationnl reLuatton of rnolcculcc in crystalline mxha An m.ilysls of rc.W.tl:: mtcra_ttons Ic.~dr to tbc mtroduction of d rnodcl one hmng the cacntml pbysxnl fcdturcs. When tbc rotational mcchmisrn I\ donimant, the rate varies cxponcntmlly wltb (w/B)"' For w/B Ixgc, wbcrc w 1s the oscdhtor frcqucncy and ,!I I\ the rot.ltlon.;l constmt, whk the rate IF mdcpcndcnt of tcmpcmturc .lt least up to tcmpcratures ==20 hB/kR
๐ SIMILAR VOLUMES
Differences between vibrational and rotational rehsation patterns disappex and similarities are reveaIed by\_trxtsforming from stite to er.ergy distributions\_ This IblIows from the constant state density of both osciilators and rotors and the exponential gap 1zw governing their relaxation A simple.
Calculations of cross sections and rate constants are reported for the vibrationti relaution of CO in collision sith 3He and 4He. Results computed using a semiclassical technique and a vibrational close-coupling. rotational infmitearder sudden method are compared.