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

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-876.265139
Energy at 298.15K-876.271318
Nuclear repulsion energy221.139239
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 mPW1PW91/6-311G**
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 3173 3035 4.84      
2 A 3159 3022 7.18      
3 A 3068 2935 18.99      
4 A 1472 1409 0.27      
5 A 1465 1401 8.73      
6 A 1367 1307 1.60      
7 A 990 947 8.23      
8 A 983 940 1.70      
9 A 713 682 0.16      
10 A 500 478 0.32      
11 A 235 225 1.83      
12 A 164 157 0.03      
13 A 103 98 1.35      
14 B 3172 3035 8.36      
15 B 3158 3022 4.33      
16 B 3066 2934 20.64      
17 B 1477 1413 23.55      
18 B 1459 1396 12.23      
19 B 1359 1300 3.22      
20 B 989 947 21.76      
21 B 981 938 5.50      
22 B 711 680 2.87      
23 B 263 251 2.01      
24 B 176 168 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 17100.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16360.4 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 mPW1PW91/6-311G**
ABC
0.27311 0.09116 0.08433

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.459 0.926 -0.492
S2 0.459 -0.926 -0.492
C3 0.459 1.823 0.792
C4 -0.459 -1.823 0.792
H5 0.054 2.836 0.799
H6 0.312 1.376 1.774
H7 1.520 1.861 0.550
H8 -0.054 -2.836 0.799
H9 -0.312 -1.376 1.774
H10 -1.520 -1.861 0.550

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.06661.81503.03352.36232.43532.42373.99823.23323.1584
S22.06663.03351.81503.99823.23323.15842.36232.43532.4237
C31.81503.03353.75921.09151.08911.08854.68743.43374.1880
C43.03351.81503.75924.68743.43374.18801.09151.08911.0885
H52.36233.99821.09154.68741.77481.77805.67404.33924.9600
H62.43533.23321.08913.43371.77481.78624.33922.82163.9149
H72.42373.15841.08854.18801.77801.78624.96003.91494.8046
H83.99822.36234.68741.09155.67404.33924.96001.77481.7780
H93.23322.43533.43371.08914.33922.82163.91491.77481.7862
H103.15842.42374.18801.08854.96003.91494.80461.77801.7862

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 102.606 S1 C3 H5 106.045
S1 C3 H6 111.526 S1 C3 H7 110.677
S2 S1 C3 102.606 S2 C4 H8 106.045
S2 C4 H9 111.526 S2 C4 H10 110.677
H5 C3 H6 108.963 H5 C3 H7 109.290
H6 C3 H7 110.222 H8 C4 H9 108.963
H8 C4 H10 109.290 H9 C4 H10 110.222
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.006      
2 S 0.006      
3 C -0.502      
4 C -0.502      
5 H 0.161      
6 H 0.160      
7 H 0.174      
8 H 0.161      
9 H 0.160      
10 H 0.174      


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 2.267 2.267
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.771 1.840 0.000
y 1.840 -35.399 0.000
z 0.000 0.000 -41.309
Traceless
 xyz
x -3.417 1.840 0.000
y 1.840 6.141 0.000
z 0.000 0.000 -2.724
Polar
3z2-r2-5.448
x2-y2-6.372
xy1.840
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.214 -0.280 0.000
y -0.280 11.528 0.000
z 0.000 0.000 7.644


<r2> (average value of r2) Å2
<r2> 156.290
(<r2>)1/2 12.502