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: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-836.954939
Energy at 298.15K 
HF Energy-836.954939
Nuclear repulsion energy141.562617
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 B1B95/cc-pVDZ
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 221 212 4.93 15.65 0.67 0.80
2 A 300 288 14.26 11.86 0.65 0.79
3 A 643 618 2.81 11.22 0.15 0.25
4 A 895 860 3.59 8.49 0.45 0.63
5 A 1187 1141 0.64 14.63 0.67 0.80
6 A 1427 1371 1.30 13.21 0.75 0.86
7 A 2705 2600 0.70 141.97 0.11 0.20
8 A 3107 2986 8.44 114.19 0.07 0.14
9 B 257 247 43.25 3.01 0.75 0.86
10 B 703 676 1.24 1.50 0.75 0.86
11 B 772 742 30.49 6.89 0.75 0.86
12 B 992 954 17.23 4.73 0.75 0.86
13 B 1239 1191 26.66 1.54 0.75 0.86
14 B 2705 2600 1.43 87.14 0.75 0.86
15 B 3173 3050 1.02 74.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10162.2 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 9767.9 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 B1B95/cc-pVDZ
ABC
0.89099 0.10535 0.09864

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.775
S2 0.000 1.545 -0.178
S3 0.000 -1.545 -0.178
H4 0.884 -0.058 1.421
H5 -0.884 0.058 1.421
H6 1.114 1.270 -0.894
H7 -1.114 -1.270 -0.894

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81541.81541.09641.09642.37372.3737
S21.81543.09062.43092.35561.35193.1104
S31.81543.09062.35562.43093.11041.3519
H41.09642.43092.35561.77172.67793.2883
H51.09642.35562.43091.77173.28832.6779
H62.37371.35193.11042.67793.28833.3773
H72.37373.11041.35193.28832.67793.3773

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.975 C1 S3 H7 95.975
S2 C1 S3 116.683 S2 C1 H4 110.761
S2 C1 H5 105.308 S3 C1 H4 105.308
S3 C1 H5 110.761 H4 C1 H5 107.799
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.242      
2 S -0.081      
3 S -0.081      
4 H 0.107      
5 H 0.107      
6 H 0.095      
7 H 0.095      


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 0.341 0.341
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.324 1.617 0.000
y 1.617 -38.086 0.000
z 0.000 0.000 -31.897
Traceless
 xyz
x 3.668 1.617 0.000
y 1.617 -6.475 0.000
z 0.000 0.000 2.808
Polar
3z2-r25.616
x2-y26.762
xy1.617
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.306 0.090 0.000
y 0.090 8.075 0.000
z 0.000 0.000 5.474


<r2> (average value of r2) Å2
<r2> 115.027
(<r2>)1/2 10.725