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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: QCISD/TZVP

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/TZVP
 hartrees
Energy at 0K-438.071914
Energy at 298.15K-438.075803
HF Energy-437.741303
Nuclear repulsion energy56.070548
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/TZVP
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' 3188 3045 11.39      
2 A' 3094 2956 27.51      
3 A' 2735 2612 12.58      
4 A' 1506 1438 6.27      
5 A' 1413 1350 10.95      
6 A' 1119 1069 14.24      
7 A' 812 776 1.81      
8 A' 728 696 1.61      
9 A" 3186 3044 13.67      
10 A" 1483 1416 3.31      
11 A" 998 954 4.12      
12 A" 249 237 16.20      

Unscaled Zero Point Vibrational Energy (zpe) 10255.0 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 9796.6 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/TZVP
ABC
3.44406 0.42556 0.40815

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.161 0.000
S2 -0.048 -0.670 0.000
H3 1.285 -0.819 0.000
H4 -1.092 1.469 0.000
H5 0.433 1.556 0.892
H6 0.433 1.556 -0.892

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.83102.38731.08831.08761.0876
S21.83101.34192.38072.44612.4461
H32.38731.34193.30002.67662.6766
H41.08832.38073.30001.76851.7685
H51.08762.44612.67661.76851.7831
H61.08762.44612.67661.76851.7831

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.378 S2 C1 H4 106.485
S2 C1 H5 111.322 S2 C1 H6 111.322
H4 C1 H5 108.733 H4 C1 H6 108.733
H5 C1 H6 110.117
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability