In a study of the rotational spectrum of the linear Fe CO radical, K. Tanaka, M. Shirasaka, and T. Tanaka (J. Chem. Phys. 106,6820 (1997)) report the following J+ I (,- J transitions:
J 24 25 26 27
28 29 V/m-1 214777.7 223379.0 231981.2 240584.4
249188.5 257793.5 Evaluate the rotational constant of the molecule. Also, estimate the value of J for the most highly populated rotational energy level at 298 K and at 100 K.