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

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-871.810546
Energy at 298.15K-871.816254
HF Energy-871.810546
Nuclear repulsion energy 
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 B97D3/3-21G
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 3149 3095 4.86      
2 A 3122 3069 7.60      
3 A 3027 2975 15.50      
4 A 1503 1478 0.03      
5 A 1499 1473 11.10      
6 A 1357 1334 1.34      
7 A 973 956 3.36      
8 A 970 954 4.88      
9 A 600 590 1.67      
10 A 402 395 0.02      
11 A 192 189 0.94      
12 A 138 136 0.23      
13 A 82 81 1.47      
14 B 3148 3095 10.40      
15 B 3121 3068 2.88      
16 B 3025 2974 9.59      
17 B 1508 1482 24.37      
18 B 1491 1466 14.00      
19 B 1347 1324 6.19      
20 B 978 962 19.93      
21 B 966 950 5.95      
22 B 600 590 1.65      
23 B 225 221 2.04      
24 B 139 136 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 16780.6 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 16495.4 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 B97D3/3-21G
ABC
0.23026 0.08397 0.07704

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.506 1.024 -0.539
S2 0.506 -1.024 -0.539
C3 0.506 1.823 0.876
C4 -0.506 -1.823 0.876
H5 0.108 2.840 0.985
H6 0.353 1.250 1.796
H7 1.560 1.844 0.586
H8 -0.108 -2.840 0.985
H9 -0.353 -1.250 1.796
H10 -1.560 -1.844 0.586

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.28471.91333.17902.44822.49742.49054.17273.26253.2562
S22.28473.17901.91334.17273.26253.25622.44822.49742.4905
C31.91333.17903.78301.09761.09451.09334.70393.32014.2182
C43.17901.91333.78304.70393.32014.21821.09761.09451.0933
H52.44824.17271.09764.70391.80161.80525.68374.19454.9876
H62.49743.26251.09453.32011.80161.80914.19452.59713.8329
H72.49053.25621.09334.21821.80521.80914.98763.83294.8301
H84.17272.44824.70391.09765.68374.19454.98761.80161.8052
H93.26252.49743.32011.09454.19452.59713.83291.80161.8091
H103.25622.49054.21821.09334.98763.83294.83011.80521.8091

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 102.252 S1 C3 H5 106.295
S1 C3 H6 111.195 S1 C3 H7 110.473
S2 S1 C3 102.252 S2 C4 H8 106.295
S2 C4 H9 111.195 S2 C4 H10 110.473
H5 C3 H6 109.155 H5 C3 H7 109.483
H6 C3 H7 110.148 H8 C4 H9 109.155
H8 C4 H10 109.483 H9 C4 H10 110.148
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.069      
2 S 0.069      
3 C -0.802      
4 C -0.802      
5 H 0.242      
6 H 0.238      
7 H 0.253      
8 H 0.242      
9 H 0.238      
10 H 0.253      


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 2.595 2.595
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.785 2.046 0.000
y 2.046 -35.682 0.000
z 0.000 0.000 -41.291
Traceless
 xyz
x -3.298 2.046 0.000
y 2.046 5.855 0.000
z 0.000 0.000 -2.558
Polar
3z2-r2-5.115
x2-y2-6.102
xy2.046
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.290 -0.610 0.000
y -0.610 11.610 0.000
z 0.000 0.000 6.827


<r2> (average value of r2) Å2
<r2> 168.172
(<r2>)1/2 12.968