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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: QCISD/aug-cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-438.164245
Energy at 298.15K-438.168240
HF Energy-437.759786
Nuclear repulsion energy56.380829
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 QCISD/aug-cc-pV(T+d)Z
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' 3162 3162 6.51      
2 A' 3074 3074 21.80      
3 A' 2729 2729 2.67      
4 A' 1516 1516 6.55      
5 A' 1384 1384 5.76      
6 A' 1116 1116 10.05      
7 A' 812 812 0.37      
8 A' 732 732 1.33      
9 A" 3165 3165 5.88      
10 A" 1502 1502 4.01      
11 A" 993 993 3.39      
12 A" 237 237 10.24      

Unscaled Zero Point Vibrational Energy (zpe) 10211.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10211.0 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 QCISD/aug-cc-pV(T+d)Z
ABC
3.45162 0.43168 0.41398

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pV(T+d)Z

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.152 0.000
S2 -0.048 -0.665 0.000
H3 1.279 -0.825 0.000
H4 -1.093 1.458 0.000
H5 0.433 1.544 0.893
H6 0.433 1.544 -0.893

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81712.38171.08851.08701.0870
S21.81711.33702.36562.43012.4301
H32.38171.33703.29222.66932.6693
H41.08852.36563.29221.76991.7699
H51.08702.43012.66931.76991.7857
H61.08702.43012.66931.76991.7857

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.896 S2 C1 H4 106.288
S2 C1 H5 111.097 S2 C1 H6 111.097
H4 C1 H5 108.892 H4 C1 H6 108.892
H5 C1 H6 110.442
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability