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

using model chemistry: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-100.008094
Energy at 298.15K-100.013851
Nuclear repulsion energy82.736184
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/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3208 3083 15.79      
2 A 3186 3062 11.05      
3 A 3073 2954 19.83      
4 A 1497 1439 0.48      
5 A 1483 1426 15.06      
6 A 1383 1330 0.08      
7 A 997 958 12.84      
8 A 992 954 0.08      
9 A 642 617 0.47      
10 A 406 391 0.02      
11 A 198 190 1.10      
12 A 136 131 0.13      
13 A 74 71 2.35      
14 B 3208 3083 18.36      
15 B 3185 3061 8.20      
16 B 3072 2953 25.67      
17 B 1500 1442 26.81      
18 B 1481 1423 16.71      
19 B 1378 1324 1.77      
20 B 996 957 26.82      
21 B 992 954 6.48      
22 B 642 617 1.56      
23 B 225 216 2.66      
24 B 143 138 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 17049.1 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 16387.6 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/LANL2DZ
ABC
0.24863 0.07858 0.07490

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -1.036 0.477 -0.496
S2 1.036 -0.477 -0.496
C3 -0.799 1.838 0.804
C4 0.799 -1.838 0.804
H5 -1.752 2.376 0.844
H6 -0.579 1.400 1.780
H7 0.000 2.512 0.493
H8 1.752 -2.376 0.844
H9 0.579 -1.400 1.780
H10 0.000 -2.512 0.493

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.28171.89693.22802.43212.49812.48824.20883.36323.3146
S22.28173.22801.89694.20883.36323.31462.43212.49812.4882
C31.89693.22804.00801.09521.09191.09114.92653.65124.4332
C43.22801.89694.00804.92653.65124.43321.09521.09191.0911
H52.43214.20881.09524.92651.79081.79195.90504.53525.2046
H62.49813.36321.09193.65121.79081.79664.53523.02924.1581
H72.48823.31461.09114.43321.79191.79665.20464.15815.0234
H84.20882.43214.92651.09525.90504.53525.20461.79081.7919
H93.36322.49813.65121.09194.53523.02924.15811.79081.7966
H103.31462.48824.43321.09115.20464.15815.02341.79191.7966

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 100.759 S1 C3 H5 105.603
S1 C3 H6 110.492 S1 C3 H7 109.805
S2 S1 C3 100.759 S2 C4 H8 105.603
S2 C4 H9 110.492 S2 C4 H10 109.805
H5 C3 H6 109.940 H5 C3 H7 110.100
H6 C3 H7 110.778 H8 C4 H9 109.940
H8 C4 H10 110.100 H9 C4 H10 110.778
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.014      
2 S 0.014      
3 C -0.774      
4 C -0.774      
5 H 0.249      
6 H 0.248      
7 H 0.263      
8 H 0.249      
9 H 0.248      
10 H 0.263      


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 2.560 2.560
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.153 -2.862 0.000
y -2.862 -33.591 0.000
z 0.000 0.000 -40.035
Traceless
 xyz
x -3.340 -2.862 0.000
y -2.862 6.503 0.000
z 0.000 0.000 -3.163
Polar
3z2-r2-6.326
x2-y2-6.562
xy-2.862
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.051 -3.006 0.000
y -3.006 9.469 0.000
z 0.000 0.000 6.452


<r2> (average value of r2) Å2
<r2> 141.101
(<r2>)1/2 11.879