Infrared Spectroscopy at Sub-Ambient Temperatures: III. Molecules and Molecular Fragments within Matrices

The practical and theoretical aspects of infrared spectroscopy of molecules and molecular fragments within matrices at low temperatures are discussed in detail. The following subjects are included in this discussion: the materials used for matrices, the history of the matrix-isolation method of preparation of matrices, unique features of the MIM, problems of the MIM, applications of the MIM, and mathematical models. This paper also discusses pressure and liquid-induced infrared spectra at low temperatures.