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

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-874.434289
Energy at 298.15K-874.440231
HF Energy-874.133597
Nuclear repulsion energy196.038504
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/SDD
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 3078 2971 0.00      
2 Ag 2510 2423 0.00      
3 Ag 1518 1465 0.00      
4 Ag 1380 1332 0.00      
5 Ag 1103 1064 0.00      
6 Ag 861 831 0.00      
7 Ag 707 682 0.00      
8 Ag 271 261 0.00      
9 Au 3171 3061 30.81      
10 Au 1155 1115 2.21      
11 Au 821 792 6.18      
12 Au 126 122 18.90      
13 Au 68 65 54.19      
14 Bg 3151 3042 0.00      
15 Bg 1331 1285 0.00      
16 Bg 999 964 0.00      
17 Bg 107 103 0.00      
18 Bu 3086 2978 35.37      
19 Bu 2511 2424 60.30      
20 Bu 1513 1460 4.55      
21 Bu 1312 1266 53.54      
22 Bu 865 835 5.16      
23 Bu 664 641 7.11      
24 Bu 197 190 9.41      

Unscaled Zero Point Vibrational Energy (zpe) 16250.0 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 15686.1 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 MP2/SDD
ABC
0.80280 0.04725 0.04541

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.773 0.000
C2 0.000 -0.773 0.000
S3 1.824 -1.358 0.000
S4 -1.824 1.358 0.000
H5 1.555 -2.704 0.000
H6 -1.555 2.704 0.000
H7 -0.496 -1.164 0.902
H8 -0.496 -1.164 -0.902
H9 0.496 1.164 0.902
H10 0.496 1.164 -0.902

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.54642.80571.91603.80912.47912.19412.19411.10141.1014
C21.54641.91602.80572.47913.80911.10141.10142.19412.1941
S32.80571.91604.54911.37265.28432.49742.49742.99032.9903
S41.91602.80574.54915.28431.37262.99032.99032.49742.4974
H53.80912.47911.37265.28436.23862.71882.71884.11094.1109
H62.47913.80915.28431.37266.23864.11094.11092.71882.7188
H72.19411.10142.49742.99032.71884.11091.80422.53143.1086
H82.19411.10142.49742.99032.71884.11091.80423.10862.5314
H91.10142.19412.99032.49744.11092.71882.53143.10861.8042
H101.10142.19412.99032.49744.11092.71883.10862.53141.8042

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 107.782 C1 C2 H7 110.802
C1 C2 H8 110.802 C1 S4 H6 96.453
C2 C1 S4 107.782 C2 C1 H9 110.802
C2 C1 H10 110.802 C2 S3 H5 96.453
S3 C2 H7 108.699 S3 C2 H8 108.699
S4 C1 H9 108.699 S4 C1 H10 108.699
H7 C2 H8 109.980 H9 C1 H10 109.980
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability