摘要: Instead of treating exclusively the restricted problem matrices, this paper will deal with more general molecular interactions in dense phases. Indeed, matrix study is a particular case phases investigations. In both techniques, spectroscopist mainly interested observing spectral perturbations due to between active molecule and its environment. cases, one facing same physical problem: relations perturbed spectra observed intermolecular potential. The subject then report present state art our knowledge on through principal experimental theoretical results obtained field high pressure IR Raman spectroscopy. first section, techniques be briefly described. second illustrations given different kinds effects expected observed, system studied being either fluid phase or solid phase. Because space limitations, only relative simple systems reviewed for which quantitative have been detailed treatment given. For complex systems, we refer an excellent recent review by Ferraro (1).
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