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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-876.178432
Energy at 298.15K-876.184631
Nuclear repulsion energy202.498323
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 mPW1PW91/6-31G*
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 3106 2946 0.00      
2 Ag 2736 2595 0.00      
3 Ag 1525 1446 0.00      
4 Ag 1368 1298 0.00      
5 Ag 1127 1068 0.00      
6 Ag 917 870 0.00      
7 Ag 756 717 0.00      
8 Ag 283 268 0.00      
9 Au 3181 3016 9.47      
10 Au 1159 1099 5.10      
11 Au 794 753 4.31      
12 Au 154 146 32.81      
13 Au 88 83 29.50      
14 Bg 3159 2995 0.00      
15 Bg 1325 1257 0.00      
16 Bg 994 942 0.00      
17 Bg 159 151 0.00      
18 Bu 3115 2954 25.28      
19 Bu 2737 2595 34.70      
20 Bu 1525 1446 6.42      
21 Bu 1277 1211 56.86      
22 Bu 911 864 5.55      
23 Bu 739 701 7.35      
24 Bu 202 192 8.99      

Unscaled Zero Point Vibrational Energy (zpe) 16666.9 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 15805.3 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 mPW1PW91/6-31G*
ABC
0.83895 0.05080 0.04878

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

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 1.738 -1.333 0.000
S4 -1.738 1.333 0.000
H5 1.465 -2.650 0.000
H6 -1.465 2.650 0.000
H7 -0.511 -1.137 0.889
H8 -0.511 -1.137 -0.889
H9 0.511 1.137 0.889
H10 0.511 1.137 -0.889

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.52022.72121.83053.71182.39152.15632.15631.09251.0925
C21.52021.83052.72122.39153.71181.09251.09252.15632.1563
S32.72121.83054.38181.34495.11202.42702.42702.89782.8978
S41.83052.72124.38185.11201.34492.89782.89782.42702.4270
H53.71182.39151.34495.11206.05662.64342.64344.00514.0051
H62.39153.71185.11201.34496.05664.00514.00512.64342.6434
H72.15631.09252.42702.89782.64344.00511.77782.49293.0619
H82.15631.09252.42702.89782.64344.00511.77783.06192.4929
H91.09252.15632.89782.42704.00512.64342.49293.06191.7778
H101.09252.15632.89782.42704.00512.64343.06192.49291.7778

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 108.255 C1 C2 H7 110.167
C1 C2 H8 110.167 C1 S4 H6 96.528
C2 C1 S4 108.255 C2 C1 H9 110.167
C2 C1 H10 110.167 C2 S3 H5 96.528
S3 C2 H7 109.667 S3 C2 H8 109.667
S4 C1 H9 109.667 S4 C1 H10 109.667
H7 C2 H8 108.909 H9 C1 H10 108.909
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.487      
2 C -0.487      
3 S -0.076      
4 S -0.076      
5 H 0.115      
6 H 0.115      
7 H 0.224      
8 H 0.224      
9 H 0.224      
10 H 0.224      


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> 213.664
(<r2>)1/2 14.617