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

using model chemistry: MP2=FULL/6-311G*

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/6-311G*
 hartrees
Energy at 0K-875.119204
Energy at 298.15K-875.125521
HF Energy-874.305793
Nuclear repulsion energy222.558564
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/6-311G*
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 3202 3033 3.47      
2 A 3188 3019 6.96      
3 A 3091 2927 21.15      
4 A 1510 1430 0.70      
5 A 1504 1425 9.31      
6 A 1427 1351 0.74      
7 A 1030 975 8.53      
8 A 1018 964 2.65      
9 A 748 708 0.14      
10 A 510 483 0.25      
11 A 247 234 1.62      
12 A 178 169 0.13      
13 A 103 97 1.12      
14 B 3201 3032 7.92      
15 B 3188 3019 5.14      
16 B 3089 2926 18.58      
17 B 1516 1436 22.16      
18 B 1495 1416 13.53      
19 B 1418 1343 1.27      
20 B 1025 971 24.25      
21 B 1021 967 6.59      
22 B 745 706 1.98      
23 B 276 261 1.70      
24 B 193 183 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 17460.7 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 16537.0 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=FULL/6-311G*
ABC
0.26539 0.09496 0.08662

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.032 -0.506
S2 0.000 -1.032 -0.506
C3 1.189 1.375 0.812
C4 -1.189 -1.375 0.812
H5 1.293 2.460 0.873
H6 0.837 1.003 1.774
H7 2.157 0.935 0.580
H8 -1.293 -2.460 0.873
H9 -0.837 -1.003 1.774
H10 -2.157 -0.935 0.580

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.06431.80722.99022.36862.42852.41743.97053.16843.1148
S22.06432.99021.80723.97053.16843.11482.36862.42852.4174
C31.80722.99023.63451.09171.08971.08884.56763.26814.0719
C42.99021.80723.63454.56763.26814.07191.09171.08971.0888
H52.36863.97051.09174.56761.77251.77725.55754.16384.8486
H62.42853.16841.08973.26811.77251.78114.16382.61233.7605
H72.41743.11481.08884.07191.77721.78114.84863.76054.7019
H83.97052.36864.56761.09175.55754.16384.84861.77251.7772
H93.16842.42853.26811.08974.16382.61233.76051.77251.7811
H103.11482.41744.07191.08884.84863.76054.70191.77721.7811

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 100.926 S1 C3 H5 106.979
S1 C3 H6 111.511 S1 C3 H7 110.715
S2 S1 C3 100.926 S2 C4 H8 106.979
S2 C4 H9 111.511 S2 C4 H10 110.715
H5 C3 H6 108.689 H5 C3 H7 109.183
H6 C3 H7 109.682 H8 C4 H9 108.689
H8 C4 H10 109.183 H9 C4 H10 109.682
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability