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" From DeMore et al. (1997) recommendation based on Burkholder et al. (1993); see these for the temperature dependence, which can be significant in the atmosphere.

FIGURE 4.13 Absorption spectrum of HNO, (solid line) at 298 K. Symbols represent data reported in previous studies from other laboratories. (Adapted from Burkholder et ai, 1993.)

Wavelength (nm)

FIGURE 4.13 Absorption spectrum of HNO, (solid line) at 298 K. Symbols represent data reported in previous studies from other laboratories. (Adapted from Burkholder et ai, 1993.)

Barnes et al., 1997). The energy needed for HO — N02 bond cleavage is slightly larger than 5v()II, but a contribution from rotational energy may make this feasible.

At present, the quantitative data on absorption strengths etc. needed to fully evaluate this possibility are not available.

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