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 CH3SSCH3 (Disulfide, dimethyl)

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-875.816167
Energy at 298.15K-875.822171
HF Energy-875.816167
Nuclear repulsion energy220.758345
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 PBEPBE/Def2TZVPP
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 3078 3041 5.03      
2 A 3061 3024 7.21      
3 A 2975 2939 14.17      
4 A 1421 1404 0.37      
5 A 1408 1391 6.10      
6 A 1287 1271 0.26      
7 A 934 923 3.27      
8 A 926 915 0.67      
9 A 668 660 0.14      
10 A 500 494 0.63      
11 A 226 223 0.91      
12 A 156 155 0.18      
13 A 110 108 1.19      
14 B 3078 3041 6.80      
15 B 3061 3024 4.41      
16 B 2973 2937 23.59      
17 B 1424 1407 17.00      
18 B 1402 1385 11.30      
19 B 1280 1265 4.11      
20 B 931 920 11.85      
21 B 922 910 2.10      
22 B 668 660 6.08      
23 B 254 251 0.85      
24 B 154 152 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 16448.3 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 16249.3 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 PBEPBE/Def2TZVPP
ABC
0.27739 0.08998 0.08317

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.461 0.916 -0.479
S2 0.461 -0.916 -0.479
C3 0.461 1.868 0.772
C4 -0.461 -1.868 0.772
H5 0.039 2.882 0.756
H6 0.329 1.442 1.773
H7 1.524 1.912 0.513
H8 -0.039 -2.882 0.756
H9 -0.329 -1.442 1.773
H10 -1.524 -1.912 0.513

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.05081.82223.05172.37502.44402.43304.01593.26333.1803
S22.05083.05171.82224.01593.26333.18032.37502.44402.4330
C31.82223.05173.84711.09881.09591.09544.77573.54654.2771
C43.05171.82223.84714.77573.54654.27711.09881.09591.0954
H52.37504.01591.09884.77571.78671.79055.76434.45695.0483
H62.44403.26331.09593.54651.78671.79914.45692.95764.0336
H72.43303.18031.09544.27711.79051.79915.04834.03364.8908
H84.01592.37504.77571.09885.76434.45695.04831.78671.7905
H93.26332.44403.54651.09594.45692.95764.03361.78671.7991
H103.18032.43304.27711.09545.04834.03364.89081.79051.7991

picture of Disulfide, dimethyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 C4 103.830 S1 C3 H5 106.133
S1 C3 H6 111.311 S1 C3 H7 110.519
S2 S1 C3 103.830 S2 C4 H8 106.133
S2 C4 H9 111.311 S2 C4 H10 110.519
H5 C3 H6 109.002 H5 C3 H7 109.385
H6 C3 H7 110.377 H8 C4 H9 109.002
H8 C4 H10 109.385 H9 C4 H10 110.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.087      
2 S -0.087      
3 C -0.257      
4 C -0.257      
5 H 0.112      
6 H 0.111      
7 H 0.122      
8 H 0.112      
9 H 0.111      
10 H 0.122      


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 1.948 1.948
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.207 1.468 0.000
y 1.468 -35.241 0.000
z 0.000 0.000 -40.842
Traceless
 xyz
x -3.165 1.468 0.000
y 1.468 5.783 0.000
z 0.000 0.000 -2.618
Polar
3z2-r2-5.236
x2-y2-5.966
xy1.468
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.062 0.084 0.000
y 0.084 13.134 0.000
z 0.000 0.000 8.688


<r2> (average value of r2) Å2
<r2> 157.576
(<r2>)1/2 12.553