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All results from a given calculation for CH3SSCH3 (Disulfide, dimethyl)

using model chemistry: B3LYP/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-35.217143
Energy at 298.15K-35.223145
Nuclear repulsion energy64.016058
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/CEP-121G*
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 3134 3038 11.47      
2 A 3115 3020 11.66      
3 A 3028 2936 24.92      
4 A 1485 1440 0.60      
5 A 1474 1429 7.74      
6 A 1362 1320 3.01      
7 A 971 941 4.94      
8 A 967 937 0.21      
9 A 676 656 0.09      
10 A 489 474 0.46      
11 A 223 217 1.25      
12 A 146 142 0.03      
13 A 98 95 1.29      
14 B 3133 3037 19.05      
15 B 3115 3019 14.71      
16 B 3026 2934 39.26      
17 B 1489 1443 20.22      
18 B 1469 1424 12.74      
19 B 1354 1313 8.66      
20 B 974 944 16.36      
21 B 960 931 2.12      
22 B 675 655 1.98      
23 B 252 244 1.14      
24 B 154 149 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 16884.1 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 16367.4 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/CEP-121G*
ABC
0.26663 0.08746 0.08115

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.048 -0.497
S2 0.000 -1.048 -0.497
C3 1.252 1.468 0.801
C4 -1.252 -1.468 0.801
H5 1.339 2.561 0.795
H6 0.925 1.139 1.792
H7 2.221 1.025 0.556
H8 -1.339 -2.561 0.795
H9 -0.925 -1.139 1.792
H10 -2.221 -1.025 0.556

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.09551.85113.09472.39822.46972.45824.06023.29723.2151
S22.09553.09471.85114.06023.29723.21512.39822.46972.4582
C31.85113.09473.85821.09701.09421.09354.78983.53754.2821
C43.09471.85113.85824.78983.53754.28211.09701.09421.0935
H52.39824.06021.09704.78981.78531.78825.77984.45035.0586
H62.46973.29721.09423.53751.78531.79484.45032.93414.0134
H72.45823.21511.09354.28211.78821.79485.05864.01344.8928
H84.06022.39824.78981.09705.77984.45035.05861.78531.7882
H93.29722.46973.53751.09424.45032.93414.01341.78531.7948
H103.21512.45824.28211.09355.05864.01344.89281.78821.7948

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 103.107 S1 C3 H5 106.022
S1 C3 H6 111.362 S1 C3 H7 110.535
S2 S1 C3 103.107 S2 C4 H8 106.022
S2 C4 H9 111.362 S2 C4 H10 110.535
H5 C3 H6 109.123 H5 C3 H7 109.436
H6 C3 H7 110.253 H8 C4 H9 109.123
H8 C4 H10 109.436 H9 C4 H10 110.253
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.006      
2 S -0.006      
3 C -0.574      
4 C -0.574      
5 H 0.189      
6 H 0.188      
7 H 0.202      
8 H 0.189      
9 H 0.188      
10 H 0.202      


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 2.110 2.110
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.480 3.506 0.000
y 3.506 -36.335 0.000
z 0.000 0.000 -39.669
Traceless
 xyz
x 0.522 3.506 0.000
y 3.506 2.240 0.000
z 0.000 0.000 -2.761
Polar
3z2-r2-5.523
x2-y2-1.145
xy3.506
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.445 -2.349 0.000
y -2.349 10.399 0.000
z 0.000 0.000 8.063


<r2> (average value of r2) Å2
<r2> 115.937
(<r2>)1/2 10.767