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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-50.192611
Energy at 298.15K-50.196455
HF Energy-50.053055
Nuclear repulsion energy27.531152
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3193 3075 15.58 55.95 0.75 0.86
2 A' 3064 2951 35.04 130.78 0.01 0.02
3 A' 2566 2471 33.98 137.89 0.32 0.48
4 A' 1519 1463 6.95 18.06 0.73 0.85
5 A' 1428 1375 3.85 0.50 0.74 0.85
6 A' 1116 1074 21.18 23.91 0.73 0.84
7 A' 803 773 2.55 9.43 0.70 0.82
8 A' 669 644 1.24 30.23 0.28 0.43
9 A" 3188 3070 27.81 55.40 0.75 0.86
10 A" 1509 1453 8.26 19.58 0.75 0.86
11 A" 1008 971 9.08 13.40 0.75 0.86
12 A" 245 236 24.80 26.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10152.8 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 9778.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/LANL2DZ
ABC
3.33574 0.39710 0.38118

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.050 1.208 0.000
S2 -0.050 -0.693 0.000
H3 1.312 -0.866 0.000
H4 -1.106 1.510 0.000
H5 0.443 1.597 0.902
H6 0.443 1.597 -0.902

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.90142.48121.09891.09891.0989
S21.90141.37222.44382.51042.5104
H32.48121.37223.39032.76352.7635
H41.09892.44383.39031.79471.7947
H51.09892.51042.76351.79471.8041
H61.09892.51042.76351.79471.8041

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 97.246 S2 C1 H4 105.958
S2 C1 H5 110.729 S2 C1 H6 110.729
H4 C1 H5 109.488 H4 C1 H6 109.488
H5 C1 H6 110.346
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability