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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-874.900391
Energy at 298.15K-874.906629
HF Energy-874.323305
Nuclear repulsion energy221.509577
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/TZVP
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 3214 3046 4.31      
2 A 3201 3034 6.74      
3 A 3099 2938 19.94      
4 A 1487 1410 0.63      
5 A 1468 1391 5.54      
6 A 1398 1325 2.29      
7 A 1004 952 2.93      
8 A 991 939 1.14      
9 A 730 692 0.04      
10 A 522 495 0.34      
11 A 240 228 1.41      
12 A 167 158 0.00      
13 A 98 93 1.05      
14 B 3213 3046 8.83      
15 B 3201 3034 6.40      
16 B 3098 2936 21.66      
17 B 1491 1414 17.78      
18 B 1459 1383 9.70      
19 B 1391 1319 5.76      
20 B 996 945 13.32      
21 B 994 942 1.94      
22 B 727 690 1.73      
23 B 270 256 1.02      
24 B 178 169 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 17318.3 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 16416.0 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/TZVP
ABC
0.26505 0.09336 0.08542

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.459 0.927 -0.505
S2 0.459 -0.927 -0.505
C3 0.459 1.784 0.812
C4 -0.459 -1.784 0.812
H5 0.060 2.797 0.861
H6 0.313 1.300 1.774
H7 1.519 1.823 0.574
H8 -0.060 -2.797 0.861
H9 -0.313 -1.300 1.774
H10 -1.519 -1.823 0.574

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.06831.82013.01342.37322.43532.42533.98573.18923.1381
S22.06833.01341.82013.98573.18923.13812.37322.43532.4253
C31.82013.01343.68431.08951.08741.08664.61023.32144.1209
C43.01341.82013.68434.61023.32144.12091.08951.08741.0866
H52.37323.98571.08954.61021.77191.77685.59444.21334.8906
H62.43533.18921.08743.32141.77191.77994.21332.67353.8143
H72.42533.13811.08664.12091.77681.77994.89063.81434.7460
H83.98572.37324.61021.08955.59444.21334.89061.77191.7768
H93.18922.43533.32141.08744.21332.67353.81431.77191.7799
H103.13812.42534.12091.08664.89063.81434.74601.77681.7799

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 101.410 S1 C3 H5 106.590
S1 C3 H6 111.261 S1 C3 H7 110.547
S2 S1 C3 101.410 S2 C4 H8 106.590
S2 C4 H9 111.261 S2 C4 H10 110.547
H5 C3 H6 108.970 H5 C3 H7 109.478
H6 C3 H7 109.916 H8 C4 H9 108.970
H8 C4 H10 109.478 H9 C4 H10 109.916
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability