In the table above showing the calculated and literature values for the vibration-rotation spectroscopic constants of ¹H³⁵Cl, give reasons why the calculated experimental values of the constants highlighted were slightly different (some higher, some lower) from the literature values.

Molecular Parameter %Error Calcuated Value 2885.6 Literature Value 2886 VO 0.014 cm- 2-1 Bo 10.638 10.440 1.90 10.002 10.136 1.32 10.956 10.593 3.43 0.6360 0.307 107 =| | 127.2 128.3 0.86 131.2 130.2 0.77 125.3 127.4 1.65 k newton m 480.6 516.3 6.92 -1