FAQ

What is the Rotational Constant vib?
Rotational Constant vib is the rotational constant for a given vibrational state of a diatomic molecule. Rotational Constant vib is usually measured using the 1 per Meter for Wave Number. Note that the value of Rotational Constant vib is always negative.
Can the Rotational Constant vib be negative?
Yes, the Rotational Constant vib, measured in Wave Number can be negative.
What unit is used to measure Rotational Constant vib?
Rotational Constant vib is usually measured using the 1 per Meter[1/m] for Wave Number. Diopter[1/m], Kayser[1/m] are the few other units in which Rotational Constant vib can be measured.
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