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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-876.218812
Energy at 298.15K-876.224911
Nuclear repulsion energy221.509348
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 B1B95/6-31G**
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 3188 3044 3.47      
2 A 3172 3028 8.13      
3 A 3075 2936 17.43      
4 A 1482 1415 0.20      
5 A 1472 1405 8.19      
6 A 1365 1303 1.18      
7 A 985 941 5.71      
8 A 979 934 1.78      
9 A 713 681 0.09      
10 A 513 490 0.30      
11 A 231 220 1.81      
12 A 148 141 0.02      
13 A 97 93 1.24      
14 B 3188 3044 7.73      
15 B 3172 3028 3.18      
16 B 3074 2935 16.34      
17 B 1486 1419 19.86      
18 B 1464 1398 10.87      
19 B 1356 1295 3.50      
20 B 985 941 19.67      
21 B 975 931 3.77      
22 B 711 679 2.89      
23 B 259 247 1.64      
24 B 165 157 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 17125.3 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 16351.2 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 B1B95/6-31G**
ABC
0.27240 0.09196 0.08445

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.452 0.923 -0.497
S2 0.452 -0.923 -0.497
C3 0.452 1.817 0.799
C4 -0.452 -1.817 0.799
H5 0.042 2.829 0.814
H6 0.300 1.360 1.778
H7 1.516 1.863 0.568
H8 -0.042 -2.829 0.814
H9 -0.300 -1.360 1.778
H10 -1.516 -1.863 0.568

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.05481.81643.03102.36632.43562.42723.99553.22643.1665
S22.05483.03101.81643.99553.22643.16652.36632.43562.4272
C31.81643.03103.74481.09221.09021.08944.67223.40844.1798
C43.03101.81643.74484.67223.40844.17981.09221.09021.0894
H52.36633.99551.09224.67221.77531.77925.65874.31214.9502
H62.43563.22641.09023.40841.77531.78744.31212.78583.8925
H72.42723.16651.08944.17981.77921.78744.95023.89254.8038
H83.99552.36634.67221.09225.65874.31214.95021.77531.7792
H93.22642.43563.40841.09024.31212.78583.89251.77531.7874
H103.16652.42724.17981.08944.95023.89254.80381.77921.7874

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 102.892 S1 C3 H5 106.204
S1 C3 H6 111.392 S1 C3 H7 110.797
S2 S1 C3 102.892 S2 C4 H8 106.204
S2 C4 H9 111.392 S2 C4 H10 110.797
H5 C3 H6 108.869 H5 C3 H7 109.286
H6 C3 H7 110.179 H8 C4 H9 108.869
H8 C4 H10 109.286 H9 C4 H10 110.179
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.021      
2 S 0.021      
3 C -0.517      
4 C -0.517      
5 H 0.165      
6 H 0.158      
7 H 0.173      
8 H 0.165      
9 H 0.158      
10 H 0.173      


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 2.278 2.278
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.034 1.884 0.000
y 1.884 -34.826 0.000
z 0.000 0.000 -40.500
Traceless
 xyz
x -3.372 1.884 0.000
y 1.884 5.941 0.000
z 0.000 0.000 -2.569
Polar
3z2-r2-5.139
x2-y2-6.208
xy1.884
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.592 -0.213 0.000
y -0.213 10.975 0.000
z 0.000 0.000 7.050


<r2> (average value of r2) Å2
<r2> 155.379
(<r2>)1/2 12.465