Knowledge Bank

The microwave spectrum of the near prolate-symmetric rotor vinyl fluoride has been examined in the $19-41$ km region. Lines comprising the transitions $J=0\leftarrow 1$ and $1\leftarrow 2$ have been observed together with a number of low J Q-type transitions. Measurements have been made of the $C12H2C12HF,C12H2C13HF$, and $C13H2C12HF$ isotopic frequencies, and are in progress on the less abundant $C13H2C13HF$ molecule. The structure of the molecule and its computation from the isotopic moments will be discussed. Stark data have been measured for several $C12H2C12HF$ transitions of the molecule and the dipole moment computed.