return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/cc-pV(T+d)Z
 hartrees
Energy at 0K-438.288705
Energy at 298.15K-438.292592
HF Energy-437.758751
Nuclear repulsion energy56.474788
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(T)=FULL/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' 3152 3023        
2 A' 3082 2956        
3 A' 2715 2604        
4 A' 1509 1447        
5 A' 1373 1316        
6 A' 1108 1062        
7 A' 806 773        
8 A' 727 697        
9 A" 3155 3026        
10 A" 1496 1434        
11 A" 981 941        
12 A" 252 241        

Unscaled Zero Point Vibrational Energy (zpe) 10177.0 cm-1
Scaled (by 0.9591) Zero Point Vibrational Energy (zpe) 9760.8 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(T)=FULL/cc-pV(T+d)Z
ABC
3.46921 0.43287 0.41513

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.150 0.000
S2 -0.048 -0.664 0.000
H3 1.278 -0.818 0.000
H4 -1.090 1.452 0.000
H5 0.429 1.545 0.890
H6 0.429 1.545 -0.890

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81462.37311.08551.08421.0842
S21.81461.33472.35932.42902.4290
H32.37311.33473.28062.66372.6637
H41.08552.35933.28061.76361.7636
H51.08422.42902.66371.76361.7804
H61.08422.42902.66371.76361.7804

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.608 S2 C1 H4 106.135
S2 C1 H5 111.333 S2 C1 H6 111.333
H4 C1 H5 108.750 H4 C1 H6 108.750
H5 C1 H6 110.386
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability