HOW MUCH DO WE KNOW (AND STILL NEED TO LEARN) ABOUT THE METHANOL MOLECULE

TL;DRAbstract

The spectroscopy of methanol has acquired great importance in a wide number of areas and applications in recent years. This talk will give an overview of our current knowledge from a fundamental high-resolution spectroscopic point of view. Details of the topics covered are outlined below: I. Methanol and most of its isotopomers have been systematically studied in the MW and FIR regions for the ground state. Recently, efforts have been directed successfully towards global modeling of the first two torsional levels using a one-dimensional large-amplitude Hamiltonian in order to obtain reliable molecular parameters, ground-state energies and transition strengths, and to consolidate our extensive ground-state information to be most useful to the astronomical community. 2. The CO-stretch fundamental overlaps well with the $CO_{2}$ laser bands so has important application for IR pumping of FIR lasers. To extend the range of IR tuning coincidences, almost every existing methanol isotopomer ha

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