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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: QCISD(T)/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(T)/TZVP
 hartrees
Energy at 0K-438.081335
Energy at 298.15K-438.085210
HF Energy-437.741179
Nuclear repulsion energy55.953040
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)/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' 3171 3055        
2 A' 3075 2962        
3 A' 2717 2617        
4 A' 1492 1438        
5 A' 1400 1349        
6 A' 1108 1067        
7 A' 803 774        
8 A' 716 690        
9 A" 3168 3051        
10 A" 1469 1415        
11 A" 989 952        
12 A" 248 239        

Unscaled Zero Point Vibrational Energy (zpe) 10178.5 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 9804.0 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)/TZVP
ABC
3.43311 0.42354 0.40624

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.164 0.000
S2 -0.048 -0.672 0.000
H3 1.287 -0.818 0.000
H4 -1.094 1.470 0.000
H5 0.433 1.560 0.893
H6 0.433 1.560 -0.893

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.83582.38951.08981.08921.0892
S21.83581.34352.38382.45222.4522
H32.38951.34353.30222.68012.6801
H41.08982.38383.30221.77121.7712
H51.08922.45222.68011.77121.7863
H61.08922.45222.68011.77121.7863

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.217 S2 C1 H4 106.327
S2 C1 H5 111.359 S2 C1 H6 111.359
H4 C1 H5 108.749 H4 C1 H6 108.749
H5 C1 H6 110.162
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability