Question

*Please Explain Neatly and Clearly*

Why do the rotational consant B_e and the rotational-vibrational constant (a_e where a is alpha) are affect by hydrogen isotope rather than the chlorine isotope?

These were the values calculated in my lab (notice the difference between H and D):

The average values for H³⁵Cl were B_ewas 1,042.0 m^-1and a_ewas 30.03 m^-1.

The average values for H³⁷Cl were B_e was 1,041.2 m^-1 and a_e was 30.23 m^-1.

The average values for D³⁵Cl were B_e was 537.69 m^-1 and a_e was 11.16 m^-1.

The average values for D³⁷Cl were B_e was 537.86 m^-1 and a_e was 11.21m^-1.