Knowledge Bank

This paper will give a brief summary of a number of recent spectroscopic projects that have been carried out in the Duke Microwave Laboratory. Species to be discussed will include HCO, LiH/LiD, HNO/DNO, $CH3OH,HCOOCH3$, HOOH, $HNO3$, and $CHD2F$. Theoretical approaches to internal rotation, unpaired electronic spin, and Born-Oppenheimer breakdown will be presented. Experimental techniques will also be discussed. In addition to the intrinsic spectroscopic importance of these species, they are also of importance in a number of astrophysical, atmospheric, and quantum electronic systems.