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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-876.143133
Energy at 298.15K-876.149238
Nuclear repulsion energy220.518979
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 B3PW91/6-311G*
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 3155 3037 6.45      
2 A 3140 3023 8.73      
3 A 3053 2939 22.41      
4 A 1484 1429 0.46      
5 A 1477 1422 9.21      
6 A 1376 1324 1.36      
7 A 993 956 9.84      
8 A 985 949 1.88      
9 A 702 676 0.16      
10 A 490 471 0.33      
11 A 231 222 1.78      
12 A 154 149 0.01      
13 A 99 96 1.38      
14 B 3154 3037 11.28      
15 B 3139 3022 6.49      
16 B 3051 2937 26.02      
17 B 1489 1434 24.25      
18 B 1471 1416 13.58      
19 B 1369 1317 2.55      
20 B 992 955 24.54      
21 B 983 947 6.13      
22 B 701 675 2.99      
23 B 259 249 1.90      
24 B 167 161 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 17056.6 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 16420.4 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 B3PW91/6-311G*
ABC
0.27212 0.09049 0.08382

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.037 -0.492
S2 0.000 -1.037 -0.492
C3 1.226 1.434 0.792
C4 -1.226 -1.434 0.792
H5 1.319 2.523 0.798
H6 0.899 1.103 1.778
H7 2.194 0.995 0.551
H8 -1.319 -2.523 0.798
H9 -0.899 -1.103 1.778
H10 -2.194 -0.995 0.551

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.07361.81913.04252.36892.44222.43024.00943.24653.1676
S22.07363.04251.81914.00943.24653.16762.36892.44222.4302
C31.81913.04253.77361.09281.09041.08974.70483.45344.2022
C43.04251.81913.77364.70483.45344.20221.09281.09041.0897
H52.36894.00941.09284.70481.77541.77805.69374.36204.9779
H62.44223.24651.09043.45341.77541.78704.36202.84613.9338
H72.43023.16761.08974.20221.77801.78704.97793.93384.8189
H84.00942.36894.70481.09285.69374.36204.97791.77541.7780
H93.24652.44223.45341.09044.36202.84613.93381.77541.7870
H103.16762.43024.20221.08974.97793.93384.81891.77801.7870

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 102.617 S1 C3 H5 106.186
S1 C3 H6 111.690 S1 C3 H7 110.817
S2 S1 C3 102.617 S2 C4 H8 106.186
S2 C4 H9 111.690 S2 C4 H10 110.817
H5 C3 H6 108.820 H5 C3 H7 109.105
H6 C3 H7 110.102 H8 C4 H9 108.820
H8 C4 H10 109.105 H9 C4 H10 110.102
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.039      
2 S 0.039      
3 C -0.815      
4 C -0.815      
5 H 0.256      
6 H 0.253      
7 H 0.267      
8 H 0.256      
9 H 0.253      
10 H 0.267      


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 2.274 2.274
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.091 3.647 0.000
y 3.647 -38.155 0.000
z 0.000 0.000 -41.381
Traceless
 xyz
x 0.677 3.647 0.000
y 3.647 2.081 0.000
z 0.000 0.000 -2.758
Polar
3z2-r2-5.516
x2-y2-0.936
xy3.647
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 157.159
(<r2>)1/2 12.536