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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: QCISD(T)/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(T)/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-438.180664
Energy at 298.15K-438.184637
HF Energy-437.759645
Nuclear repulsion energy56.251847
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(T)/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' 3145 3145        
2 A' 3056 3056        
3 A' 2708 2708        
4 A' 1502 1502        
5 A' 1366 1366        
6 A' 1102 1102        
7 A' 802 802        
8 A' 719 719        
9 A" 3148 3148        
10 A" 1488 1488        
11 A" 981 981        
12 A" 231 231        

Unscaled Zero Point Vibrational Energy (zpe) 10123.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10123.0 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(T)/aug-cc-pV(T+d)Z
ABC
3.43735 0.42952 0.41190

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.156 0.000
S2 -0.048 -0.667 0.000
H3 1.282 -0.822 0.000
H4 -1.095 1.459 0.000
H5 0.434 1.547 0.895
H6 0.434 1.547 -0.895

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82242.38371.09001.08861.0886
S21.82241.33932.36922.43552.4355
H32.38371.33933.29452.67082.6708
H41.09002.36923.29451.77341.7734
H51.08862.43552.67081.77341.7891
H61.08862.43552.67081.77341.7891

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.670 S2 C1 H4 106.130
S2 C1 H5 111.056 S2 C1 H6 111.056
H4 C1 H5 108.975 H4 C1 H6 108.975
H5 C1 H6 110.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability