High-resolution overtone spectroscopy of many-atom systems

2 EXAMPLES OF INTERACTION OF THEORY AND EXPERIMENT 1.2.1 High-resolution overtone spectroscopy of many-atom systems 

Some years ago, Scoles and coworkers [3] measured the acetylenic CH overtone spectra (u = 0- 1, u = 0- 2) in (CH3)3 YC CH and in their deuterated methyl counterparts  

The spectral lines for u = 0 — 1 and for u = 0 — 2, were much narrower for the Si than for the C compound. For the C compound, the line was broad enough to determine its shape which was found to be Lorentzian. These results are illustrated in Fig. 1.1. 

Another possibility is that the heavier mass of the Si may tend to block the kinetic energy transfer between the two parts of the molecule. (There 

We consider first the Lorentzian aspect and a sufficient but not necessary 

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