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: BLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at BLYP/6-311G**
 hartrees
Energy at 0K-876.194057
Energy at 298.15K-876.199982
Nuclear repulsion energy216.026647
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 BLYP/6-311G**
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 3066 3054 8.06      
2 A 3049 3037 9.21      
3 A 2971 2959 18.43      
4 A 1437 1432 0.43      
5 A 1427 1422 6.47      
6 A 1318 1313 3.80      
7 A 952 948 7.86      
8 A 944 940 1.15      
9 A 630 627 0.04      
10 A 433 432 0.41      
11 A 218 217 1.31      
12 A 161 161 0.00      
13 A 102 101 1.32      
14 B 3066 3054 11.27      
15 B 3049 3037 7.57      
16 B 2969 2958 24.98      
17 B 1441 1435 21.81      
18 B 1422 1416 9.97      
19 B 1311 1306 7.41      
20 B 949 945 18.67      
21 B 942 939 5.05      
22 B 630 627 3.41      
23 B 244 243 1.46      
24 B 164 163 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 16446.0 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 16381.8 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 BLYP/6-311G**
ABC
0.26508 0.08581 0.07977

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.470 0.951 -0.497
S2 0.470 -0.951 -0.497
C3 0.470 1.888 0.803
C4 -0.470 -1.888 0.803
H5 0.058 2.906 0.786
H6 0.317 1.451 1.796
H7 1.536 1.919 0.556
H8 -0.058 -2.906 0.786
H9 -0.317 -1.451 1.796
H10 -1.536 -1.919 0.556

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.12201.85703.12242.39722.47552.46354.08633.32463.2384
S22.12203.12241.85704.08633.32463.23842.39722.47552.4635
C31.85703.12243.89031.09881.09571.09524.82283.57104.3101
C43.12241.85703.89034.82283.57104.31011.09881.09571.0952
H52.39724.08631.09884.82281.79021.79235.81354.48835.0873
H62.47553.32461.09573.57101.79021.80094.48832.97054.0414
H72.46353.23841.09524.31011.79231.80095.08734.04144.9168
H84.08632.39724.82281.09885.81354.48835.08731.79021.7923
H93.32462.47553.57101.09574.48832.97054.04141.79021.8009
H103.23842.46354.31011.09525.08734.04144.91681.79231.8009

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 103.190 S1 C3 H5 105.508
S1 C3 H6 111.309 S1 C3 H7 110.447
S2 S1 C3 103.190 S2 C4 H8 105.508
S2 C4 H9 111.309 S2 C4 H10 110.447
H5 C3 H6 109.325 H5 C3 H7 109.554
H6 C3 H7 110.564 H8 C4 H9 109.325
H8 C4 H10 109.554 H9 C4 H10 110.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.003      
2 S 0.003      
3 C -0.441      
4 C -0.441      
5 H 0.141      
6 H 0.142      
7 H 0.155      
8 H 0.141      
9 H 0.142      
10 H 0.155      


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 2.180 2.180
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.446 1.723 0.000
y 1.723 -36.012 0.000
z 0.000 0.000 -42.107
Traceless
 xyz
x -3.386 1.723 0.000
y 1.723 6.265 0.000
z 0.000 0.000 -2.878
Polar
3z2-r2-5.756
x2-y2-6.434
xy1.723
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.687 -0.304 0.000
y -0.304 12.691 0.000
z 0.000 0.000 8.097


<r2> (average value of r2) Å2
<r2> 163.874
(<r2>)1/2 12.801