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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: QCISD(T)/6-311G*

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)/6-311G*
 hartrees
Energy at 0K-438.038938
Energy at 298.15K-438.042819
HF Energy-437.729248
Nuclear repulsion energy56.031605
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)/6-311G*
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' 3136 3019        
2 A' 3046 2932        
3 A' 2591 2494        
4 A' 1508 1452        
5 A' 1414 1361        
6 A' 1122 1081        
7 A' 811 781        
8 A' 726 699        
9 A" 3134 3017        
10 A" 1497 1441        
11 A" 1007 970        
12 A" 247 238        

Unscaled Zero Point Vibrational Energy (zpe) 10118.6 cm-1
Scaled (by 0.9628) Zero Point Vibrational Energy (zpe) 9742.1 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)/6-311G*
ABC
3.40741 0.42687 0.40913

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.157 0.000
S2 -0.048 -0.669 0.000
H3 1.296 -0.821 0.000
H4 -1.097 1.469 0.000
H5 0.433 1.559 0.896
H6 0.433 1.559 -0.896

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82602.39101.09411.09361.0936
S21.82601.35262.38132.44952.4495
H32.39101.35263.31162.68552.6855
H41.09412.38133.31161.77501.7750
H51.09362.44952.68551.77501.7917
H61.09362.44952.68551.77501.7917

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.431 S2 C1 H4 106.567
S2 C1 H5 111.595 S2 C1 H6 111.595
H4 C1 H5 108.459 H4 C1 H6 108.459
H5 C1 H6 110.010
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability