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

using model chemistry: BLYP/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 BLYP/3-21G
 hartrees
Energy at 0K-871.732881
Energy at 298.15K-871.739390
Nuclear repulsion energy194.747619
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 BLYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3032 3015 0.00      
2 Ag 2378 2365 0.00      
3 Ag 1502 1493 0.00      
4 Ag 1290 1283 0.00      
5 Ag 1048 1042 0.00      
6 Ag 813 808 0.00      
7 Ag 658 655 0.00      
8 Ag 256 254 0.00      
9 Au 3113 3096 11.29      
10 Au 1113 1107 1.86      
11 Au 774 770 6.36      
12 Au 103 103 0.71      
13 Bg 3087 3070 0.00      
14 Bg 1304 1297 0.00      
15 Bg 919 913 0.00      
16 Bg 74 74 0.00      
17 Bu 3042 3025 14.61      
18 Bu 2379 2366 77.33      
19 Bu 1505 1496 7.48      
20 Bu 1227 1220 53.59      
21 Bu 829 825 6.65      
22 Bu 611 607 18.69      
23 Bu 189 188 10.59      

Unscaled Zero Point Vibrational Energy (zpe) 15622.3 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 15536.4 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 BLYP/3-21G
ABC
0.79532 0.04658 0.04478

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.766 0.000
C2 0.000 -0.766 0.000
S3 1.864 -1.336 0.000
S4 -1.864 1.336 0.000
H5 1.584 -2.696 0.000
H6 -1.584 2.696 0.000
H7 -0.475 -1.166 0.905
H8 -0.475 -1.166 -0.905
H9 0.475 1.166 0.905
H10 0.475 1.166 -0.905

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.53182.80901.94903.80672.49652.18502.18501.09711.0971
C21.53181.94902.80902.49653.80671.09711.09712.18502.1850
S32.80901.94904.58611.38875.30452.51352.51353.00053.0005
S41.94902.80904.58615.30451.38873.00053.00052.51352.5135
H53.80672.49651.38875.30456.25312.71992.71994.11794.1179
H62.49653.80675.30451.38876.25314.11794.11792.71992.7199
H72.18501.09712.51353.00052.71994.11791.80922.51733.0999
H82.18501.09712.51353.00052.71994.11791.80923.09992.5173
H91.09712.18503.00052.51354.11792.71992.51733.09991.8092
H101.09712.18503.00052.51354.11792.71993.09992.51731.8092

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 106.999 C1 C2 H7 111.363
C1 C2 H8 111.363 C1 S4 H6 95.356
C2 C1 S4 106.999 C2 C1 H9 111.363
C2 C1 H10 111.363 C2 S3 H5 95.356
S3 C2 H7 107.914 S3 C2 H8 107.914
S4 C1 H9 107.914 S4 C1 H10 107.914
H7 C2 H8 111.077 H9 C1 H10 111.077
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.550      
2 C -0.550      
3 S 0.003      
4 S 0.003      
5 H 0.076      
6 H 0.076      
7 H 0.236      
8 H 0.235      
9 H 0.236      
10 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.001 0.000 -0.024 0.024
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> 230.563
(<r2>)1/2 15.184