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

using model chemistry: TPSSh/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-876.240489
Energy at 298.15K-876.246551
HF Energy-876.240489
Nuclear repulsion energy220.799118
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/6-31G(2df,p)
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 3157 3046 6.43      
2 A 3137 3027 7.28      
3 A 3047 2940 14.99      
4 A 1488 1435 0.64      
5 A 1475 1423 3.90      
6 A 1345 1298 3.39      
7 A 968 934 3.06      
8 A 962 929 1.05      
9 A 687 663 0.07      
10 A 512 494 0.55      
11 A 225 217 1.07      
12 A 153 147 0.08      
13 A 105 102 1.49      
14 B 3156 3046 7.65      
15 B 3137 3027 5.62      
16 B 3045 2939 22.73      
17 B 1490 1438 13.09      
18 B 1469 1417 7.71      
19 B 1337 1290 12.75      
20 B 968 934 14.78      
21 B 957 923 1.99      
22 B 686 662 2.74      
23 B 253 244 1.15      
24 B 155 150 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 16956.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 16363.1 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 TPSSh/6-31G(2df,p)
ABC
0.27555 0.09018 0.08351

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.465 0.915 -0.478
S2 0.465 -0.915 -0.478
C3 0.465 1.864 0.770
C4 -0.465 -1.864 0.770
H5 0.047 2.875 0.753
H6 0.335 1.438 1.767
H7 1.524 1.903 0.508
H8 -0.047 -2.875 0.753
H9 -0.335 -1.438 1.767
H10 -1.524 -1.903 0.508

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.05241.82333.04592.37052.44012.42984.00633.25463.1668
S22.05243.04591.82334.00633.25463.16682.37052.44012.4298
C31.82333.04593.84191.09431.09171.09114.76603.54074.2673
C43.04591.82333.84194.76603.54074.26731.09431.09171.0911
H52.37054.00631.09434.76601.78161.78535.75004.44675.0346
H62.44013.25461.09173.54071.78161.79274.44672.95334.0249
H72.42983.16681.09114.26731.78531.79275.03464.02494.8750
H84.00632.37054.76601.09435.75004.44675.03461.78161.7853
H93.25462.44013.54071.09174.44672.95334.02491.78161.7927
H103.16682.42984.26731.09115.03464.02494.87501.78531.7927

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 103.447 S1 C3 H5 105.966
S1 C3 H6 111.170 S1 C3 H7 110.434
S2 S1 C3 103.447 S2 C4 H8 105.966
S2 C4 H9 111.170 S2 C4 H10 110.434
H5 C3 H6 109.175 H5 C3 H7 109.554
H6 C3 H7 110.430 H8 C4 H9 109.175
H8 C4 H10 109.554 H9 C4 H10 110.430
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability