return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBEPBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-875.799718
Energy at 298.15K-875.805664
HF Energy-875.799718
Nuclear repulsion energy201.930651
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/Def2TZVPP
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 2986 2950 0.00      
2 Ag 2623 2591 0.00      
3 Ag 1436 1419 0.00      
4 Ag 1267 1252 0.00      
5 Ag 1074 1061 0.00      
6 Ag 864 853 0.00      
7 Ag 721 713 0.00      
8 Ag 269 266 0.00      
9 Au 3056 3019 7.19      
10 Au 1080 1067 6.02      
11 Au 756 747 3.35      
12 Au 134 132 14.83      
13 Au 63 63 24.36      
14 Bg 3032 2995 0.00      
15 Bg 1251 1236 0.00      
16 Bg 932 920 0.00      
17 Bg 132 130 0.00      
18 Bu 2997 2960 23.36      
19 Bu 2624 2592 4.52      
20 Bu 1441 1423 5.87      
21 Bu 1190 1176 36.24      
22 Bu 859 849 1.14      
23 Bu 699 690 5.28      
24 Bu 190 188 6.23      

Unscaled Zero Point Vibrational Energy (zpe) 15837.3 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 15645.7 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/Def2TZVPP
ABC
0.83142 0.05059 0.04857

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.488 0.585 0.000
C2 -0.488 -0.585 0.000
S3 0.488 -2.137 0.000
S4 -0.488 2.137 0.000
H5 -0.574 -2.974 0.000
H6 0.574 2.974 0.000
H7 -1.123 -0.550 0.894
H8 -1.123 -0.550 -0.894
H9 1.123 0.550 0.894
H10 1.123 0.550 -0.894

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.52402.72231.83273.71392.38972.16422.16421.09721.0972
C21.52401.83272.72232.38973.71391.09721.09722.16422.1642
S32.72231.83274.38371.35185.11112.43122.43122.90242.9024
S41.83272.72234.38375.11111.35182.90242.90242.43122.4312
H53.71392.38971.35185.11116.05682.64052.64054.01214.0121
H62.38973.71395.11111.35186.05684.01214.01212.64052.6405
H72.16421.09722.43122.90242.64054.01211.78772.50143.0745
H82.16421.09722.43122.90242.64054.01211.78773.07452.5014
H91.09722.16422.90242.43124.01212.64052.50143.07451.7877
H101.09722.16422.90242.43124.01212.64053.07452.50141.7877

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 108.037 C1 C2 H7 110.250
C1 C2 H8 110.250 C1 S4 H6 96.075
C2 C1 S4 108.037 C2 C1 H9 110.250
C2 C1 H10 110.250 C2 S3 H5 96.075
S3 C2 H7 109.588 S3 C2 H8 109.588
S4 C1 H9 109.588 S4 C1 H10 109.588
H7 C2 H8 109.110 H9 C1 H10 109.110
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.139      
2 C -0.139      
3 S -0.197      
4 S -0.197      
5 H 0.105      
6 H 0.105      
7 H 0.116      
8 H 0.116      
9 H 0.116      
10 H 0.116      


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 -39.860 6.322 0.000
y 6.322 -40.202 0.000
z 0.000 0.000 -42.922
Traceless
 xyz
x 1.702 6.322 0.000
y 6.322 1.189 0.000
z 0.000 0.000 -2.891
Polar
3z2-r2-5.782
x2-y20.342
xy6.322
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.597 -0.691 0.000
y -0.691 13.151 0.000
z 0.000 0.000 7.066


<r2> (average value of r2) Å2
<r2> 214.717
(<r2>)1/2 14.653