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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: CCSD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/cc-pVTZ
 hartrees
Energy at 0K-438.153421
Energy at 298.15K-438.157293
HF Energy-437.756551
Nuclear repulsion energy56.308976
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 CCSD/cc-pVTZ
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' 3170 2984 7.20      
2 A' 3081 2900 22.59      
3 A' 2730 2569 4.44      
4 A' 1511 1422 6.14      
5 A' 1379 1298 6.61      
6 A' 1111 1046 10.47      
7 A' 808 760 0.54      
8 A' 732 689 1.51      
9 A" 3172 2985 8.35      
10 A" 1497 1409 3.89      
11 A" 988 929 3.74      
12 A" 238 224 12.61      

Unscaled Zero Point Vibrational Energy (zpe) 10208.2 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 9607.9 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 CCSD/cc-pVTZ
ABC
3.45477 0.43011 0.41247

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.153 0.000
S2 -0.048 -0.666 0.000
H3 1.282 -0.819 0.000
H4 -1.092 1.456 0.000
H5 0.431 1.548 0.891
H6 0.431 1.548 -0.891

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81912.37921.08721.08651.0865
S21.81911.33902.36462.43442.4344
H32.37921.33903.28842.66912.6691
H41.08722.36463.28841.76771.7677
H51.08652.43442.66911.76771.7829
H61.08652.43442.66911.76771.7829

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.583 S2 C1 H4 106.151
S2 C1 H5 111.316 S2 C1 H6 111.316
H4 C1 H5 108.822 H4 C1 H6 108.822
H5 C1 H6 110.271
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability