Intermolecular vibration-to-vibration energy transfer in HF/DF($nu$ = 1) + HF/DF($nu$ = 1) $Yields$ HF/DF($nu$ = 0) + HF/DF($nu$ = 2) through the formation of dimers

Journal Article · Fri Aug 01 04:00:00 EDT 1975 · IEEE J. Quant. Electron., v. QE-11, no. 8, pp. 679-684

OSTI ID:4130457

Shin, H K

A theory of vibration-to-vibration energy transfer is developed for HF/ DF($nu$ = 1) + HF/DF($nu$ = 1) $Yields$ HF/DF($nu$ = 0) + HF/DF($nu$ = 2) based on the model of dimer formation. This model is shown to be primarily responsible for the energy transfer below 500$sup 0$K where a strong negative temperature dependence of energy-transfer rates is found; above this temperature the rapid rotational motion of the colliding molecules causes the energy exchange to take place with the result that the rate increases with temperature in a normal fashion. The model represents the low-temperature limit of the energy-transfer process, while the rapid rotational model gives the high-temperature limiting rate, so the overall collision process can be explained in terms of these two contributions. The sum takes a minimum value near 700$sup 0$K in both HF + HF and DF + DF collisions. (auth)

• Research Organization: Univ. of Nevada, Reno
• NSA Number: NSA-33-011876
• OSTI ID: 4130457
• Journal Information: IEEE J. Quant. Electron., v. QE-11, no. 8, pp. 679-684, Journal Name: IEEE J. Quant. Electron., v. QE-11, no. 8, pp. 679-684; ISSN IEJQA
• Country of Publication: United States
• Language: English

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REACTION KINETICS