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

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-874.850448
Energy at 298.15K-874.856626
HF Energy-874.292385
Nuclear repulsion energy220.658606
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/cc-pVDZ
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 3211 3058 3.34      
2 A 3196 3044 6.09      
3 A 3086 2939 18.10      
4 A 1475 1405 0.47      
5 A 1463 1393 6.21      
6 A 1349 1285 1.70      
7 A 982 935 3.12      
8 A 973 927 1.50      
9 A 728 694 0.08      
10 A 517 493 0.34      
11 A 237 226 1.13      
12 A 159 151 0.03      
13 A 98 94 1.08      
14 B 3211 3058 7.00      
15 B 3196 3044 4.03      
16 B 3084 2938 21.38      
17 B 1479 1409 14.94      
18 B 1456 1387 9.56      
19 B 1339 1276 8.63      
20 B 979 932 14.03      
21 B 973 927 2.30      
22 B 726 692 2.35      
23 B 268 255 1.19      
24 B 170 162 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 17177.6 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 16361.7 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/cc-pVDZ
ABC
0.26400 0.09253 0.08504

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.038 -0.503
S2 0.000 -1.038 -0.503
C3 1.216 1.394 0.808
C4 -1.216 -1.394 0.808
H5 1.309 2.492 0.856
H6 0.870 1.022 1.785
H7 2.193 0.954 0.560
H8 -1.309 -2.492 0.856
H9 -0.870 -1.022 1.785
H10 -2.193 -0.954 0.560

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.07651.82303.01902.38222.44792.43804.00323.19953.1471
S22.07653.01901.82304.00323.19953.14712.38222.44792.4380
C31.82303.01903.69971.10301.10111.10024.63503.33824.1461
C43.01901.82303.69974.63503.33824.14611.10301.10111.1002
H52.38224.00321.10304.63501.79391.79895.63064.23844.9218
H62.44793.19951.10113.33821.79391.80414.23842.68453.8450
H72.43803.14711.10024.14611.79891.80414.92183.84504.7819
H84.00322.38224.63501.10305.63064.23844.92181.79391.7989
H93.19952.44793.33821.10114.23842.68453.84501.79391.8041
H103.14712.43804.14611.10024.92183.84504.78191.79891.8041

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 101.266 S1 C3 H5 106.388
S1 C3 H6 111.271 S1 C3 H7 110.581
S2 S1 C3 101.266 S2 C4 H8 106.388
S2 C4 H9 111.271 S2 C4 H10 110.581
H5 C3 H6 108.954 H5 C3 H7 109.468
H6 C3 H7 110.086 H8 C4 H9 108.954
H8 C4 H10 109.468 H9 C4 H10 110.086
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability