Table 5. Vibrational Term Values (G_v) and the Effective Rotational (B_v) and Quartic Centrifugal Distortion (D_v) Constants (All in Inverse Centimeters) for the X²Σ⁺ State of ²⁴MgH.

	Gv			Bv			Dv × 104
v	Exp.a	Calc.b	Δc	Exp.	Calc.	Δ	Exp.	Calc.	Δ
0	0.000	0.00	0.00	5.73651	5.7341	–0.0024	3.5431	3.543	–0.001
1	1431.978	1431.28	–0.69	5.55529	5.5530	–0.0023	3.5569	3.555	–0.002
2	2800.678	2799.43	–1.25	5.36751	5.3655	–0.0020	3.5928	3.598	0.005
3	4102.330	4100.72	–1.61	5.16973	5.1681	–0.0016	3.6753	3.686	0.011
4	5331.389	5329.65	–1.74	4.95654	4.9554	–0.0011	3.8273	3.849	0.021
5	6479.656	6478.05	–1.61	4.71964	4.7190	–0.0006	4.0954	4.141	0.045
6	7534.814	7533.60	–1.21	4.44431	4.4446	0.0003	4.5742	4.670	0.095
7	8478.000	8477.28	–0.72	4.10720	4.1068	–0.0004	5.8007	5.677	–0.124
8	9279.653	9278.93	–0.72	3.65877	3.6579	–0.0009	7.3349	7.748	0.413
9	9892.724	9890.72	–2.01	3.00781	2.9997	–0.0081	13.052	12.81	–0.24
10	10,249.407	10,243.39	–6.02	1.96873	1.9529	–0.0158	27.644	26.36	–1.28
11	10,352.250	10,347.78	–4.47	0.88390	0.9157	0.0318	45.349	41.68	–3.67

^aThe empirical band constants from ref (3).

^bThe values predicted taking into account the nonadiabatic effects; the zero-point energy is 738.72 cm^–1.

^cA difference between the calculated and experimental values.