Density of states associated with

Figure 7. Density of states associated with s-like character about the hydrogens...

The large joint density of states associated with the direct it- to ir -(interband) transition results in a very strong cross-section for stimulated emission. 

Note that information about density of states associated with either the local minima or the saddles are not included in the disconnectivity graph, and the graph generally depends on the choice of the spacing between the energies at which the superbasin analysis is performed. There does not exist any meaning about one dimensional horizontal axis. 

Fig. 5.5. Vibrational density of states associated with linear chain.

The solution arrived at in our linear elastic model may be contrasted with those determined earlier in the lattice treatment of the same problem. In fig. 5.13 the dispersion relation along an arbitrary direction in g-space is shown for our elastic model of vibrations. Note that as a result of the presumed isotropy of the medium, no g-directions are singled out and the dispersion relation is the same in every direction in g-space. Though our elastic model of the vibrations of solids is of more far reaching significance, at present our main interest in it is as the basis for a deeper analysis of the specific heats of solids. From the standpoint of the contribution of the thermal vibrations to the specific heat, we now need to determine the density of states associated with this dispersion relation. 

By and large, the gas-phase reaction resembles that for the condensed phase. The complete absence of elimination reactions from 10 indicates that the increased density of states associated with the growing alkyl side chain sufficiently slows the H2-I0SS reaction, allowing collisional stabilization of the adduct or further addition reactions under conditions where higher pressures and shorter reaction times work against chemically activated reactions. 

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