Table 4: Calculated vibrational energy levels (in cm−1) and comparison with available experimental results for HSi79Br ().

This work Expt. [8] This work Expt. [8] 0.0 3471.9 416.5 416.54 3497.2 541.8 535.31 3546.3 828.8 3590.8 956.6 949.37 3619.6 1081.1 1059.20 3634.3 1237.5 3710.8 3641.02 1367.1 3724.3 1492.9 1470.89 3742.1 1613.0 1569.07 3766.1 3675.59 1642.7 3806.0 1774.4 3841.9 1813.7 1786.96 3842.1 3784.87 1900.2 3846.1 2021.1 1977.88 3872.3 2043.6 3883.8 2126.6 2060.57 3894.6 3828.00 2178.3 3947.3 2227.7 2200.77 3963.8 2304.8 4009.5 2321.3 2286.15 4036.3 2424.6 4076.1 2439.2 4112.0 2531.4 4119.3 2577.7 4165.5 2614.0 2526.79 4196.8 4069.35 2637.7 4240.2 2706.7 4247.4 2733.5 2697.66 4264.0 2819.9 2770.59 4299.7 4229.06 2825.4 4331.9 2829.2 4339.7 4261.83 2931.4 4344.0 2971.8 4359.5 3015.5 4393.4 3044.0 4434.8 3065.2 4481.3 3104.6 4487.9 3141.7 4510.3 3212.6 4628.7 3224.6 4637.9 3229.2 3179.44 4649.2 3305.3 3235.83 4695.3 3328.9 4700.6 4681.50 3360.0 4734.1 4645.25 3412.1 4735.8 3432.9 4766.4 4620.91 3447.0 4770.9 3448.6 4797.7