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

using model chemistry: QCISD/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 QCISD/6-311G**
 hartrees
Energy at 0K-874.944176
Energy at 298.15K-874.950469
Nuclear repulsion energy221.466525
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 QCISD/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 3167 3022 4.71      
2 A 3154 3009 8.92      
3 A 3070 2929 23.92      
4 A 1487 1419 0.63      
5 A 1479 1411 5.38      
6 A 1412 1347 3.59      
7 A 1016 970 5.05      
8 A 1003 957 2.63      
9 A 737 703 0.20      
10 A 502 478 0.16      
11 A 245 234 1.50      
12 A 178 170 0.11      
13 A 101 96 0.93      
14 B 3166 3021 13.90      
15 B 3154 3009 11.22      
16 B 3068 2927 22.91      
17 B 1491 1422 16.16      
18 B 1470 1403 7.67      
19 B 1404 1339 6.81      
20 B 1009 963 15.21      
21 B 1008 961 5.79      
22 B 734 701 1.33      
23 B 274 262 1.37      
24 B 191 182 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 17259.4 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 16467.2 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 QCISD/6-311G**
ABC
0.26331 0.09381 0.08581

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.462 0.930 -0.506
S2 0.462 -0.930 -0.506
C3 0.462 1.770 0.812
C4 -0.462 -1.770 0.812
H5 0.066 2.788 0.879
H6 0.320 1.273 1.776
H7 1.526 1.811 0.573
H8 -0.066 -2.788 0.879
H9 -0.320 -1.273 1.776
H10 -1.526 -1.811 0.573

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.07741.81543.00492.37652.43662.42753.98783.17543.1330
S22.07743.00491.81543.98783.17543.13302.37652.43662.4275
C31.81543.00493.65751.09471.09281.09194.58843.28584.1023
C43.00491.81543.65754.58843.28584.10231.09471.09281.0919
H52.37653.98781.09474.58841.77881.78335.57754.17684.8764
H62.43663.17541.09283.28581.77881.78574.17682.62553.7904
H72.42753.13301.09194.10231.78331.78574.87643.79044.7368
H83.98782.37654.58841.09475.57754.17684.87641.77881.7833
H93.17542.43663.28581.09284.17682.62553.79041.77881.7857
H103.13302.42754.10231.09194.87643.79044.73681.78331.7857

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 100.838 S1 C3 H5 106.873
S1 C3 H6 111.388 S1 C3 H7 110.760
S2 S1 C3 100.838 S2 C4 H8 106.873
S2 C4 H9 111.388 S2 C4 H10 110.760
H5 C3 H6 108.811 H5 C3 H7 109.292
H6 C3 H7 109.642 H8 C4 H9 108.811
H8 C4 H10 109.292 H9 C4 H10 109.642
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability