Resonance energy exchange

The reactivity of H02 is much lower than that of OH, H, or O therefore, somewhat higher temperatures are necessary for sequence [Eq. (3.22)] to become effective [6a], Water vapor tends to inhibit explosion due to the effect of reaction (3.21) in that H20 has a high third-body efficiency, which is most probably due to some resonance energy exchange with the H02 formed. 

Figure 38 shows the result of this analysis. It is quite clear that a very good correlation exists between the europium-emission intensities and the number of resonances found. From this result Axe and Weller concluded that resonant-energy exchange is the likely mechanism by which the energy is transferred. 

The great efficiency of certain molecules in removing vibrational energy from another is often ascribed to resonance energy exchange. The NOCl system has provided the first clear demonstration that this process actually occurs. Mixtures of NOCl with various pressures of NO were fiashed with a NO filter to prevent direct excitation of the NO. As the NO-.NOCl ratio is increased, the spectra of all the excited levels are seen to decrease progressively in intensity—with the notable exception of the first excited level which increases. With additives other than NO, all levels decrease. Thus the reaction is... 

This example is one of the many relaxation processes attributed to the col-lisional vibrational-translational energy exchange. Without discussing other processes, we shall only mention those most important for the kinetics of nonequilibrium reactions vibrational relaxation of anharmonic oscillators in a heat bath, relaxation of one- and two-component mixture of harmonic oscillators with resonant and quasi-resonant energy exchange and relaxation of anharmonic oscillators [87, 164, 343, 460] (see Section IV. 15). 

The resonant energy exchange corrections to Aot depend on the molecular dipole and quadrupole moments and on the molecular moment of inertia... 

Oxtoby D W and Rice S A 1976 Nonlinear resonance and stochasticity in intramolecular energy exchanged. Chem. Phys. 65 1676-83... 

Ion Scattering Spectrometry Low-Energy Ion Scattering Resonance Charge Exchange... 

Rao, A., Martin, P., Rcithmcicr, R.A.F., and Cantley, L.C. (1979) Location of the stilbenedisulfonate binding site of the human erythrocyte anion-exchange system by resonance energy transfer. Biochemistry 18, 4505-4516. 

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