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: B3LYP/6-31G

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/6-31G
 hartrees
Energy at 0K-876.133421
Energy at 298.15K-876.139185
Nuclear repulsion energy209.977597
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/6-31G
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 3204 3082 6.96      
2 A 3185 3064 7.66      
3 A 3082 2965 15.40      
4 A 1518 1460 0.01      
5 A 1505 1448 11.25      
6 A 1389 1337 2.40      
7 A 996 958 10.23      
8 A 994 957 0.00      
9 A 643 619 1.08      
10 A 424 408 0.02      
11 A 198 190 1.17      
12 A 126 121 0.07      
13 A 77 74 2.12      
14 B 3204 3082 8.90      
15 B 3184 3063 2.38      
16 B 3081 2964 15.53      
17 B 1521 1464 26.60      
18 B 1501 1444 14.83      
19 B 1384 1331 5.53      
20 B 997 959 21.23      
21 B 991 953 3.99      
22 B 642 618 1.06      
23 B 225 216 1.97      
24 B 136 131 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 17103.1 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 16453.2 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/6-31G
ABC
0.24846 0.08063 0.07574

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.123 -0.506
S2 0.000 -1.123 -0.506
C3 1.302 1.493 0.821
C4 -1.302 -1.493 0.821
H5 1.404 2.581 0.833
H6 0.964 1.139 1.795
H7 2.249 1.029 0.546
H8 -1.404 -2.581 0.833
H9 -0.964 -1.139 1.795
H10 -2.249 -1.029 0.546

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.24661.89623.20972.42702.49562.48504.18173.36833.2865
S22.24663.20971.89624.18173.36833.28652.42702.49562.4850
C31.89623.20973.96171.09301.09011.08954.89043.60684.3646
C43.20971.89623.96174.89043.60684.36461.09301.09011.0895
H52.42704.18171.09304.89041.78841.79005.87594.51315.1441
H62.49563.36831.09013.60681.78841.79584.51312.98404.0727
H72.48503.28651.08954.36461.79001.79585.14414.07274.9472
H84.18172.42704.89041.09305.87594.51315.14411.78841.7900
H93.36832.49563.60681.09014.51312.98404.07271.78841.7958
H103.28652.48504.36461.08955.14414.07274.94721.79001.7958

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 101.232 S1 C3 H5 105.391
S1 C3 H6 110.450 S1 C3 H7 109.702
S2 S1 C3 101.232 S2 C4 H8 105.391
S2 C4 H9 110.450 S2 C4 H10 109.702
H5 C3 H6 110.007 H5 C3 H7 110.196
H6 C3 H7 110.953 H8 C4 H9 110.007
H8 C4 H10 110.196 H9 C4 H10 110.953
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.050      
2 S 0.050      
3 C -0.612      
4 C -0.612      
5 H 0.186      
6 H 0.180      
7 H 0.195      
8 H 0.186      
9 H 0.180      
10 H 0.195      


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 2.570 2.570
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.583 4.251 0.000
y 4.251 -38.289 0.000
z 0.000 0.000 -41.470
Traceless
 xyz
x 1.297 4.251 0.000
y 4.251 1.737 0.000
z 0.000 0.000 -3.034
Polar
3z2-r2-6.067
x2-y2-0.294
xy4.251
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.040 -0.001 -0.684
y -0.001 6.899 0.001
z -0.684 0.001 6.677


<r2> (average value of r2) Å2
<r2> 170.788
(<r2>)1/2 13.069