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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G**
 hartrees
Energy at 0K-874.833578
Energy at 298.15K-874.839836
HF Energy-874.257106
Nuclear repulsion energy222.481526
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 MP2=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3262 3048 3.70      
2 A 3248 3034 7.21      
3 A 3141 2935 16.95      
4 A 1538 1437 0.79      
5 A 1522 1422 5.74      
6 A 1430 1336 2.45      
7 A 1030 962 4.56      
8 A 1020 953 2.87      
9 A 751 702 0.06      
10 A 531 496 0.17      
11 A 242 226 1.58      
12 A 161 150 0.00      
13 A 100 93 1.18      
14 B 3262 3048 7.78      
15 B 3247 3034 4.23      
16 B 3140 2934 15.46      
17 B 1542 1441 16.02      
18 B 1514 1415 8.84      
19 B 1422 1329 5.27      
20 B 1026 959 17.73      
21 B 1020 953 2.73      
22 B 747 698 1.58      
23 B 271 254 1.27      
24 B 174 162 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 17669.5 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 16510.4 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 MP2=FULL/6-31G**
ABC
0.26954 0.09387 0.08582

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.027 -0.502
S2 0.000 -1.027 -0.502
C3 1.194 1.402 0.806
C4 -1.194 -1.402 0.806
H5 1.284 2.485 0.844
H6 0.850 1.046 1.772
H7 2.163 0.971 0.578
H8 -1.284 -2.485 0.844
H9 -0.850 -1.046 1.772
H10 -2.163 -0.971 0.578

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.05371.80983.00572.36392.42782.41863.97463.19223.1363
S22.05373.00571.80983.97463.19223.13632.36392.42782.4186
C31.80983.00573.68291.08791.08611.08534.61033.33224.1172
C43.00571.80983.68294.61033.33224.11721.08791.08611.0853
H52.36393.97461.08794.61031.76701.77165.59524.22924.8888
H62.42783.19221.08613.33221.76701.77664.22922.69533.8173
H72.41863.13631.08534.11721.77161.77664.88883.81734.7422
H83.97462.36394.61031.08795.59524.22924.88881.76701.7716
H93.19222.42783.33221.08614.22922.69533.81731.76701.7766
H103.13632.41864.11721.08534.88883.81734.74221.77161.7766

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 101.965 S1 C3 H5 106.669
S1 C3 H6 111.476 S1 C3 H7 110.826
S2 S1 C3 101.965 S2 C4 H8 106.669
S2 C4 H9 111.476 S2 C4 H10 110.826
H5 C3 H6 108.743 H5 C3 H7 109.223
H6 C3 H7 109.812 H8 C4 H9 108.743
H8 C4 H10 109.223 H9 C4 H10 109.812
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability