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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-871.710428
Energy at 298.15K-871.716460
Nuclear repulsion energy197.982474
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 B3PW91/3-21G
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 3112 2991 0.00      
2 Ag 2486 2389 0.00      
3 Ag 1531 1472 0.00      
4 Ag 1342 1290 0.00      
5 Ag 1099 1057 0.00      
6 Ag 864 831 0.00      
7 Ag 706 679 0.00      
8 Ag 275 264 0.00      
9 Au 3199 3075 5.19      
10 Au 1162 1117 2.18      
11 Au 795 764 7.55      
12 Au 126 122 33.12      
13 Au 88 84 50.56      
14 Bg 3173 3050 0.00      
15 Bg 1345 1292 0.00      
16 Bg 956 919 0.00      
17 Bg 129 124 0.00      
18 Bu 3122 3001 10.78      
19 Bu 2487 2390 59.59      
20 Bu 1530 1471 13.60      
21 Bu 1277 1227 45.18      
22 Bu 869 836 8.13      
23 Bu 672 646 16.85      
24 Bu 199 192 11.97      

Unscaled Zero Point Vibrational Energy (zpe) 16272.2 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 15640.9 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 B3PW91/3-21G
ABC
0.81232 0.04840 0.04650

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.760 0.000
C2 0.000 -0.760 0.000
S3 1.823 -1.316 0.000
S4 -1.823 1.316 0.000
H5 1.565 -2.666 0.000
H6 -1.565 2.666 0.000
H7 -0.482 -1.151 0.898
H8 -0.482 -1.151 -0.898
H9 0.482 1.151 0.898
H10 0.482 1.151 -0.898

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.52002.76241.90563.76592.46552.16562.16561.09181.0918
C21.52001.90562.76242.46553.76591.09181.09182.16562.1656
S32.76241.90564.49591.37435.22722.47912.47912.94752.9475
S41.90562.76244.49595.22721.37432.94752.94752.47912.4791
H53.76592.46551.37435.22726.18152.70002.70004.06724.0672
H62.46553.76595.22721.37436.18154.06724.06722.70002.7000
H72.16561.09182.47912.94752.70004.06721.79692.49503.0747
H82.16561.09182.47912.94752.70004.06721.79693.07472.4950
H91.09182.16562.94752.47914.06722.70002.49503.07471.7969
H101.09182.16562.94752.47914.06722.70003.07472.49501.7969

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 106.954 C1 C2 H7 110.965
C1 C2 H8 110.965 C1 S4 H6 96.124
C2 C1 S4 106.954 C2 C1 H9 110.965
C2 C1 H10 110.965 C2 S3 H5 96.124
S3 C2 H7 108.535 S3 C2 H8 108.535
S4 C1 H9 108.535 S4 C1 H10 108.535
H7 C2 H8 110.750 H9 C1 H10 110.750
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.662      
2 C -0.662      
3 S 0.017      
4 S 0.017      
5 H 0.096      
6 H 0.096      
7 H 0.275      
8 H 0.275      
9 H 0.275      
10 H 0.275      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 223.201
(<r2>)1/2 14.940