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: PBE1PBE/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 PBE1PBE/TZVP
 hartrees
Energy at 0K-438.527136
Energy at 298.15K-438.531014
HF Energy-438.527136
Nuclear repulsion energy56.215156
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 PBE1PBE/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 3043 5.91 66.93 0.75 0.86
2 A' 3075 2951 24.01 143.46 0.00 0.00
3 A' 2704 2595 5.98 140.90 0.32 0.48
4 A' 1484 1424 9.90 13.84 0.75 0.85
5 A' 1367 1312 5.31 3.70 0.43 0.60
6 A' 1098 1054 15.85 11.65 0.67 0.80
7 A' 804 771 1.20 8.82 0.37 0.54
8 A' 727 698 2.35 11.81 0.30 0.46
9 A" 3168 3040 8.30 70.43 0.75 0.86
10 A" 1471 1411 6.23 15.84 0.75 0.86
11 A" 976 937 6.99 5.75 0.75 0.86
12 A" 251 240 20.10 5.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10147.5 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 9737.5 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 PBE1PBE/TZVP
ABC
3.43112 0.42951 0.41176

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.154 0.000
S2 -0.048 -0.666 0.000
H3 1.291 -0.829 0.000
H4 -1.094 1.458 0.000
H5 0.429 1.553 0.894
H6 0.429 1.553 -0.894

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82082.39281.08961.08901.0890
S21.82081.34842.36852.43992.4399
H32.39281.34843.30462.68612.6861
H41.08962.36853.30461.76911.7691
H51.08902.43992.68611.76911.7879
H61.08902.43992.68611.76911.7879

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.927 S2 C1 H4 106.205
S2 C1 H5 111.478 S2 C1 H6 111.478
H4 C1 H5 108.588 H4 C1 H6 108.588
H5 C1 H6 110.338
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.394      
2 S -0.142      
3 H 0.090      
4 H 0.147      
5 H 0.149      
6 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.894 1.463 0.000 1.714
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.059 -1.408 0.000
y -1.408 -20.341 0.000
z 0.000 0.000 -22.540
Traceless
 xyz
x 2.381 -1.408 0.000
y -1.408 0.458 0.000
z 0.000 0.000 -2.840
Polar
3z2-r2-5.679
x2-y21.282
xy-1.408
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.174 -0.236 0.000
y -0.236 5.296 0.000
z 0.000 0.000 3.304


<r2> (average value of r2) Å2
<r2> 40.516
(<r2>)1/2 6.365