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 HSCH2SH (Methanedithiol)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-836.977760
Energy at 298.15K 
HF Energy-836.977760
Nuclear repulsion energy140.819435
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 B3LYP/aug-cc-pVTZ
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 210 203 4.87 5.14 0.38 0.56
2 A 285 276 7.21 1.50 0.17 0.29
3 A 624 603 2.28 15.80 0.14 0.25
4 A 896 867 3.33 9.43 0.08 0.15
5 A 1203 1164 0.56 3.36 0.73 0.84
6 A 1450 1403 1.26 9.54 0.60 0.75
7 A 2671 2584 0.05 149.13 0.07 0.14
8 A 3079 2979 5.60 106.13 0.07 0.12
9 B 239 231 32.22 0.23 0.75 0.86
10 B 705 682 5.54 0.30 0.75 0.86
11 B 727 704 29.18 5.76 0.75 0.86
12 B 1004 972 15.65 1.18 0.75 0.86
13 B 1256 1215 26.75 0.06 0.75 0.86
14 B 2670 2583 0.50 53.63 0.75 0.86
15 B 3132 3031 1.60 57.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10075.7 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 9748.2 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 B3LYP/aug-cc-pVTZ
ABC
0.89418 0.10344 0.09709

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.774
S2 0.000 1.558 -0.179
S3 0.000 -1.558 -0.179
H4 0.878 -0.054 1.411
H5 -0.878 0.054 1.411
H6 1.134 1.326 -0.864
H7 -1.134 -1.326 -0.864

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82701.82701.08651.08652.39342.3934
S21.82703.11652.42952.35901.34523.1736
S31.82703.11652.35902.42953.17361.3452
H41.08652.42952.35901.76032.67343.2933
H51.08652.35902.42951.76033.29332.6734
H62.39341.34523.17362.67343.29333.4893
H72.39343.17361.34523.29332.67343.4893

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.787 C1 S3 H7 96.787
S2 C1 S3 117.062 S2 C1 H4 110.404
S2 C1 H5 105.280 S3 C1 H4 105.280
S3 C1 H5 110.404 H4 C1 H5 108.205
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.337      
2 S -0.163      
3 S -0.163      
4 H 0.211      
5 H 0.211      
6 H 0.120      
7 H 0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.507 0.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.058 1.389 0.000
y 1.389 -38.977 0.000
z 0.000 0.000 -33.082
Traceless
 xyz
x 3.971 1.389 0.000
y 1.389 -6.407 0.000
z 0.000 0.000 2.436
Polar
3z2-r24.872
x2-y26.919
xy1.389
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.451 0.412 0.000
y 0.412 10.992 0.000
z 0.000 0.000 7.931


<r2> (average value of r2) Å2
<r2> 117.121
(<r2>)1/2 10.822