Knowledge Bank

The microwave spectrum of $CH3CH2BF2$ has been studied in the region from 18 to 40 MHz. Predominately a-type transitions have been assigned for the ground state and the four excited states of $CH3CH2\mathrm{<mrow\; data-mjx-texclass="ORD">11</mrow>}BF2$ and the ground state of $CH3CH2\mathrm{<mrow\; data-mjx-texclass="ORD">10</mrow>}BF2$. The molecular configuration derived from the experimental rotational constants will be discussed.