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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-874.784330
Energy at 298.15K-874.790575
HF Energy-874.247185
Nuclear repulsion energy222.156508
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
4/u)
Dep P Dep U
1 A 3233 3046 3.30      
2 A 3218 3032 6.48      
3 A 3119 2939 15.42      
4 A 1540 1451 0.65      
5 A 1526 1438 7.32      
6 A 1437 1354 1.33      
7 A 1035 975 5.86      
8 A 1027 967 2.83      
9 A 751 708 0.10      
10 A 531 500 0.19      
11 A 242 228 1.59      
12 A 159 150 0.00      
13 A 100 94 1.34      
14 B 3233 3046 6.21      
15 B 3218 3032 3.00      
16 B 3118 2937 13.85      
17 B 1544 1455 18.72      
18 B 1519 1431 11.04      
19 B 1429 1347 2.90      
20 B 1033 973 20.15      
21 B 1026 966 3.41      
22 B 747 703 1.56      
23 B 272 256 1.37      
24 B 173 163 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 17613.1 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 16595.1 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
0.26962 0.09346 0.08555

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 -0.501
S2 0.000 -1.027 -0.501
C3 1.198 1.407 0.804
C4 -1.198 -1.407 0.804
H5 1.289 2.495 0.839
H6 0.854 1.052 1.777
H7 2.171 0.972 0.575
H8 -1.289 -2.495 0.839
H9 -0.854 -1.052 1.777
H10 -2.171 -0.972 0.575

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.05371.81193.01022.36942.43342.42373.98293.20073.1413
S22.05373.01021.81193.98293.20073.14132.36942.43342.4237
C31.81193.01023.69541.09301.09101.09024.62763.34764.1306
C43.01021.81193.69544.62763.34764.13061.09301.09101.0902
H52.36943.98291.09304.62761.77541.77975.61754.25014.9058
H62.43343.20071.09103.34761.77541.78484.25012.71123.8338
H72.42373.14131.09024.13061.77971.78484.90583.83384.7576
H83.98292.36944.62761.09305.61754.25014.90581.77541.7797
H93.20072.43343.34761.09104.25012.71123.83381.77541.7848
H103.14132.42374.13061.09024.90583.83384.75761.77971.7848

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 102.105 S1 C3 H5 106.674
S1 C3 H6 111.486 S1 C3 H7 110.799
S2 S1 C3 102.105 S2 C4 H8 106.674
S2 C4 H9 111.486 S2 C4 H10 110.799
H5 C3 H6 108.761 H5 C3 H7 109.216
H6 C3 H7 109.814 H8 C4 H9 108.761
H8 C4 H10 109.216 H9 C4 H10 109.814
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability