return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: MP2=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-432.977139
Energy at 298.15K-432.981045
HF Energy-432.894716
Nuclear repulsion energy56.036115
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=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3544 3150 1.61 26.39 0.74 0.85
2 A' 3354 2982 4.16 34.79 0.02 0.03
3 A' 3094 2750 25.77 60.45 0.32 0.48
4 A' 1743 1549 2.77 15.70 0.75 0.86
5 A' 1602 1424 7.09 3.75 0.75 0.86
6 A' 1269 1128 17.10 13.20 0.75 0.86
7 A' 945 840 1.17 6.41 0.48 0.65
8 A' 889 791 0.03 8.02 0.29 0.45
9 A" 3522 3131 6.49 26.25 0.75 0.86
10 A" 1731 1539 1.98 16.79 0.75 0.86
11 A" 1099 977 0.15 4.56 0.75 0.86
12 A" 256 228 8.51 9.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11524.2 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 10243.8 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=FULL/STO-3G
ABC
3.39273 0.42834 0.41010

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.050 1.147 0.000
S2 -0.050 -0.671 0.000
H3 1.296 -0.773 0.000
H4 -1.096 1.497 0.000
H5 0.446 1.568 0.894
H6 0.446 1.568 -0.894

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81862.34491.10291.10501.1050
S21.81861.34912.40712.46162.4616
H32.34491.34913.29712.64642.6464
H41.10292.40713.29711.78321.7832
H51.10502.46162.64641.78321.7870
H61.10502.46162.64641.78321.7870

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 94.336 S2 C1 H4 108.467
S2 C1 H5 112.396 S2 C1 H6 112.396
H4 C1 H5 107.733 H4 C1 H6 107.733
H5 C1 H6 107.917
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability