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All results from a given calculation for CH2SHCH2SH (1,2-Ethanedithiol)

using model chemistry: MP2=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2=FULL/3-21G
 hartrees
Energy at 0K-870.210839
Energy at 298.15K-870.216936
HF Energy-869.897507
Nuclear repulsion energy196.764949
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/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3142 3000 0.00      
2 Ag 2467 2355 0.00      
3 Ag 1575 1504 0.00      
4 Ag 1385 1322 0.00      
5 Ag 1090 1040 0.00      
6 Ag 862 823 0.00      
7 Ag 702 670 0.00      
8 Ag 274 261 0.00      
9 Au 3224 3078 6.99      
10 Au 1180 1126 1.69      
11 Au 805 769 5.07      
12 Au 137 131 42.39      
13 Au 93 89 32.71      
14 Bg 3202 3058 0.00      
15 Bg 1378 1316 0.00      
16 Bg 976 932 0.00      
17 Bg 147 140 0.00      
18 Bu 3152 3009 11.06      
19 Bu 2468 2356 57.66      
20 Bu 1577 1506 8.98      
21 Bu 1304 1245 53.16      
22 Bu 863 824 10.65      
23 Bu 667 637 9.79      
24 Bu 199 190 10.37      

Unscaled Zero Point Vibrational Energy (zpe) 16433.0 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 15690.3 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/3-21G
ABC
0.81056 0.04760 0.04575

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.764 0.000
C2 0.000 -0.764 0.000
S3 1.833 -1.335 0.000
S4 -1.833 1.335 0.000
H5 1.570 -2.683 0.000
H6 -1.570 2.683 0.000
H7 -0.485 -1.153 0.896
H8 -0.485 -1.153 -0.896
H9 0.485 1.153 0.896
H10 0.485 1.153 -0.896

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.52892.78661.91923.78822.47912.17132.17131.09021.0902
C21.52891.91922.78662.47913.78821.09021.09022.17132.1713
S32.78661.91924.53431.37355.26512.49112.49112.96792.9679
S41.91922.78664.53435.26511.37352.96792.96792.49112.4911
H53.78822.47911.37355.26516.21742.71412.71414.08614.0861
H62.47913.78825.26511.37356.21744.08614.08612.71412.7141
H72.17131.09022.49112.96792.71414.08611.79172.50163.0771
H82.17131.09022.49112.96792.71414.08611.79173.07712.5016
H91.09022.17132.96792.49114.08612.71412.50163.07711.7917
H101.09022.17132.96792.49114.08612.71413.07712.50161.7917

picture of 1,2-Ethanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 107.289 C1 C2 H7 110.879
C1 C2 H8 110.879 C1 S4 H6 96.274
C2 C1 S4 107.289 C2 C1 H9 110.879
C2 C1 H10 110.879 C2 S3 H5 96.274
S3 C2 H7 108.584 S3 C2 H8 108.584
S4 C1 H9 108.584 S4 C1 H10 108.584
H7 C2 H8 110.514 H9 C1 H10 110.514
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability