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Recent experimental results obtained at the University of Antwerp, Belgium, on the fundamental collision-induced IR absorption by liquefied mixtures of oxygen and nitrogen are analyzed. The spectra appear as diffuse bands having halfwidths of about 100 cm-1 which is rationalized in terms of quadrupolar induction mechanism. Strikingly sharp additional features (HWHH of about 1 cm-1) appear at vibrational frequencies of N2 and O2. At small molar fractions X of oxygen, its intensity behaves as X2 in the oxygen band and varies linearly in the spectrum of nitrogen. Dispersion mechanism producing dipole moments independent on the rotational degrees of freedom is supposed to be a main source of the sharp line induction. Thus, the resonant feature in the oxygen band is due to pairs of oxygen molecules trapped in a cage of nitrogen surrounding. Its halfwidth values can be interpreted in terms of the oxygen diffusion and vibrational dephasing times. At the same conditions, the resonant nitrogen spectrum feature is formed by a polarization defect around a particular vibrating nitrogen molecule produced by the presence of an oxygen molecule.





:
1. CF4 - .

2. - NF3 + AR

3.- : .

4.CRYOSPECTRA OF HYDROGEN DEUTERIDE DISSOLVED IN LIQUID NEON: NEW EFFECTS AND THEIR INTERPRETATION.

5. - (SF6)2 (SiF4)2. (1-3) Ar (11)

6. n1 ~ 2 n4 CHF3 .

7.DENSITY EVOLUTION OF THE ps TIME-DOMAIN CARS RESPONSES FROM THE CO2 GAS.

8. .

9. SF6 CF4 .

11.EXPERIMENTAL AND THEORETICAL STUDY OF THE H2OHF COMPLEX IN THE GAS PHASE. COMPLETELY NONEMPIRICAL CALCULATION OF THE n(HF) BAND STRUCTURE.

12. n1 ~2n4 CHX3.

13.
(1Dg) - .

14. n1(CH) CHF3 CHF3/AR/N2.

15. ( ) (200 280 ).