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

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-871.338526
Energy at 298.15K-871.344535
Nuclear repulsion energy196.723689
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 PBEPBE/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 3034 3006 0.00      
2 Ag 2415 2393 0.00      
3 Ag 1490 1477 0.00      
4 Ag 1296 1284 0.00      
5 Ag 1072 1062 0.00      
6 Ag 832 824 0.00      
7 Ag 685 679 0.00      
8 Ag 266 263 0.00      
9 Au 3120 3091 7.12      
10 Au 1123 1113 2.38      
11 Au 777 770 7.61      
12 Au 145 143 53.81      
13 Au 94 93 24.92      
14 Bg 3093 3064 0.00      
15 Bg 1305 1293 0.00      
16 Bg 925 917 0.00      
17 Bg 147 146 0.00      
18 Bu 3044 3016 12.06      
19 Bu 2416 2394 62.67      
20 Bu 1490 1477 11.06      
21 Bu 1231 1220 43.96      
22 Bu 837 829 6.75      
23 Bu 649 643 15.96      
24 Bu 192 191 11.57      

Unscaled Zero Point Vibrational Energy (zpe) 15837.8 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 15693.7 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 PBEPBE/3-21G
ABC
0.79871 0.04786 0.04597

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.506 0.572 0.000
C2 -0.506 -0.572 0.000
S3 0.506 -2.204 0.000
S4 -0.506 2.204 0.000
H5 -0.598 -3.044 0.000
H6 0.598 3.044 0.000
H7 -1.129 -0.547 0.906
H8 -1.129 -0.547 -0.906
H9 1.129 0.547 0.906
H10 1.129 0.547 -0.906

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.52632.77551.92043.78032.47432.17852.17851.10021.1002
C21.52631.92042.77552.47433.78031.10021.10022.17852.1785
S32.77551.92044.52251.38705.24892.49802.49802.96272.9627
S41.92042.77554.52255.24891.38702.96272.96272.49802.4980
H53.78032.47431.38705.24896.20452.70902.70904.08664.0866
H62.47433.78035.24891.38706.20454.08664.08662.70902.7090
H72.17851.10022.49802.96272.70904.08661.81202.50983.0956
H82.17851.10022.49802.96272.70904.08661.81203.09562.5098
H91.10022.17852.96272.49804.08662.70902.50983.09561.8120
H101.10022.17852.96272.49804.08662.70903.09562.50981.8120

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 106.713 C1 C2 H7 111.037
C1 C2 H8 111.037 C1 S4 H6 95.495
C2 C1 S4 106.713 C2 C1 H9 111.037
C2 C1 H10 111.037 C2 S3 H5 95.495
S3 C2 H7 108.515 S3 C2 H8 108.515
S4 C1 H9 108.515 S4 C1 H10 108.515
H7 C2 H8 110.870 H9 C1 H10 110.870
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.634      
2 C -0.634      
3 S 0.007      
4 S 0.007      
5 H 0.097      
6 H 0.097      
7 H 0.265      
8 H 0.265      
9 H 0.265      
10 H 0.265      


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
Primitive
 xyz
x -41.038 8.564 0.000
y 8.564 -40.501 0.000
z 0.000 0.000 -43.345
Traceless
 xyz
x 0.885 8.564 0.000
y 8.564 1.690 0.000
z 0.000 0.000 -2.575
Polar
3z2-r2-5.151
x2-y2-0.537
xy8.564
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.979 -0.425 0.000
y -0.425 11.436 0.000
z 0.000 0.000 4.453


<r2> (average value of r2) Å2
<r2> 225.447
(<r2>)1/2 15.015