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

using model chemistry: TPSSh/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at TPSSh/cc-pVTZ
 hartrees
Energy at 0K-876.322956
Energy at 298.15K-876.329019
HF Energy-876.322956
Nuclear repulsion energy220.657197
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 TPSSh/cc-pVTZ
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 3140 3041 7.28      
2 A 3122 3023 8.12      
3 A 3038 2942 16.12      
4 A 1487 1439 0.40      
5 A 1473 1426 5.19      
6 A 1343 1301 1.51      
7 A 968 938 2.45      
8 A 963 932 0.72      
9 A 681 659 0.01      
10 A 505 489 0.61      
11 A 224 217 0.93      
12 A 153 148 0.13      
13 A 106 103 1.36      
14 B 3140 3040 9.23      
15 B 3122 3023 6.86      
16 B 3037 2940 26.08      
17 B 1489 1442 14.31      
18 B 1468 1422 9.18      
19 B 1336 1294 9.13      
20 B 968 937 12.03      
21 B 958 927 1.55      
22 B 680 658 2.88      
23 B 252 244 0.91      
24 B 153 148 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 16901.4 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 16365.6 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 TPSSh/cc-pVTZ
ABC
0.27579 0.08987 0.08338

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.471 0.913 -0.471
S2 0.471 -0.913 -0.471
C3 0.471 1.876 0.759
C4 -0.471 -1.876 0.759
H5 0.049 2.884 0.738
H6 0.354 1.460 1.758
H7 1.523 1.916 0.484
H8 -0.049 -2.884 0.738
H9 -0.354 -1.460 1.758
H10 -1.523 -1.916 0.484

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.05481.82343.04852.36952.43832.42754.00693.25753.1663
S22.05483.04851.82344.00693.25753.16632.36952.43832.4275
C31.82343.04853.86911.09191.08911.08864.78843.57894.2937
C43.04851.82343.86914.78843.57894.29371.09191.08911.0886
H52.36954.00691.09194.78841.77751.78125.76804.47955.0573
H62.43833.25751.08913.57891.77751.78874.47953.00394.0674
H72.42753.16631.08864.29371.78121.78875.05734.06744.8959
H84.00692.36954.78841.09195.76804.47955.05731.77751.7812
H93.25752.43833.57891.08914.47953.00394.06741.77751.7887
H103.16632.42754.29371.08865.05734.06744.89591.78121.7887

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 103.478 S1 C3 H5 106.004
S1 C3 H6 111.169 S1 C3 H7 110.391
S2 S1 C3 103.478 S2 C4 H8 106.004
S2 C4 H9 111.169 S2 C4 H10 110.391
H5 C3 H6 109.174 H5 C3 H7 109.552
H6 C3 H7 110.439 H8 C4 H9 109.174
H8 C4 H10 109.552 H9 C4 H10 110.439
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.082      
2 S -0.082      
3 C -0.202      
4 C -0.202      
5 H 0.086      
6 H 0.093      
7 H 0.105      
8 H 0.086      
9 H 0.093      
10 H 0.105      


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 2.050 2.050
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.799 0.030 0.000
y 0.030 12.603 0.000
z 0.000 0.000 8.361


<r2> (average value of r2) Å2
<r2> 157.291
(<r2>)1/2 12.542