THE VIBRATION ROTATION SPECTRUM OF $C_{2}T_{2}$

Author Institution: Los Alamos Scientific Laboratory, University of California; Laboratory of Molecular Spectroscopy and Infrared Studies, Department of Physics, The Ohio State UniversityAcetylene-$t_{2}$ has been prepared for the first time and the $\nu_{3}$ and $\nu_{4}+\nu_{5}$ bands of $^{12}C_{2}^{3}H_{2}$ have been observed and measured employing a high resolution vacuum infrared spectrograph. Molecular constants obtained from the analysis of the data will be presented, and other features of the spectrum will be discussed. Supported, in part, by the United States Atomic Energy Commission through a contract with The Ohio State University Research Foundation as a joint project between the Laboratory of Molecular Spectroscopy and Infrared Studies of The Ohio State University Physics Department and the Los Alamos Scientific Laboratory of The University of California, Los Alamos, New Mexico