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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-870.544118
Energy at 298.15K-870.550424
HF Energy-870.117270
Nuclear repulsion energy201.259233
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 MP2/3-21G*
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 3115 2964 0.00      
2 Ag 2780 2645 0.00      
3 Ag 1584 1507 0.00      
4 Ag 1404 1335 0.00      
5 Ag 1100 1046 0.00      
6 Ag 897 853 0.00      
7 Ag 755 718 0.00      
8 Ag 292 278 0.00      
9 Au 3189 3033 8.18      
10 Au 1205 1146 3.87      
11 Au 823 783 4.16      
12 Au 160 152 41.98      
13 Au 95 91 23.58      
14 Bg 3167 3013 0.00      
15 Bg 1377 1310 0.00      
16 Bg 1028 978 0.00      
17 Bg 171 163 0.00      
18 Bu 3125 2973 17.51      
19 Bu 2781 2645 15.00      
20 Bu 1587 1510 8.23      
21 Bu 1327 1263 44.33      
22 Bu 934 889 5.01      
23 Bu 726 691 6.57      
24 Bu 213 202 8.53      

Unscaled Zero Point Vibrational Energy (zpe) 16917.6 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 16093.7 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 MP2/3-21G*
ABC
0.82477 0.05012 0.04812

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.774 0.000
C2 0.000 -0.774 0.000
S3 1.750 -1.342 0.000
S4 -1.750 1.342 0.000
H5 1.481 -2.654 0.000
H6 -1.481 2.654 0.000
H7 -0.512 -1.141 0.893
H8 -0.512 -1.141 -0.893
H9 0.512 1.141 0.893
H10 0.512 1.141 -0.893

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.54822.74621.84003.73412.39292.17442.17441.09271.0927
C21.54821.84002.74622.39293.73411.09271.09272.17442.1744
S32.74621.84004.41111.33905.13882.44002.44002.91532.9153
S41.84002.74624.41115.13881.33902.91532.91532.44002.4400
H53.73412.39291.33905.13886.07802.65612.65614.01744.0174
H62.39293.73415.13881.33906.07804.01744.01742.65612.6561
H72.17441.09272.44002.91532.65614.01741.78572.50163.0736
H82.17441.09272.44002.91532.65614.01741.78573.07362.5016
H91.09272.17442.91532.44004.01742.65612.50163.07361.7857
H101.09272.17442.91532.44004.01742.65613.07362.50161.7857

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 107.986 C1 C2 H7 109.636
C1 C2 H8 109.636 C1 S4 H6 96.378
C2 C1 S4 107.986 C2 C1 H9 109.636
C2 C1 H10 109.636 C2 S3 H5 96.378
S3 C2 H7 109.982 S3 C2 H8 109.982
S4 C1 H9 109.982 S4 C1 H10 109.982
H7 C2 H8 109.596 H9 C1 H10 109.596
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability