Recent Advances in Molecular Spectroscopy of Electronic and Vibrational Transitions in Condensed Phase and Its Application to Chemistry

This review outlines recent progress in molecular spectroscopy of electronic and vibrational transitions in a condensed phase. Among various spectroscopies, in this review, I have selected far-ultraviolet (FUV) spectroscopy, near-infrared (NIR) spectroscopy, Raman spectroscopy, and Terahertz (THz)/far-infrared (FIR) spectroscopy because our group has been very much involved in the development of these spectroscopies. For each spectroscopy I describe its brief history, characteristics, and applications to a variety of chemistry. One of the purposes of this review article is to show how the advances in molecular spectroscopy have brought about progress in various fields of chemistry. Some emphasis is put on the explanation of the development of instruments in our group because it induced new advances in FUV, NIR and Raman (particularly surface-enhanced Raman scattering and tip-enhanced Raman scattering). Moreover, through this article, new introduction of quantum chemical calculations to each spectroscopy is highlighted.