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: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-876.126909
Energy at 298.15K-876.132914
Nuclear repulsion energy197.240473
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 B3LYP/SDD
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 3103 2983 0.00      
2 Ag 2496 2400 0.00      
3 Ag 1510 1452 0.00      
4 Ag 1348 1295 0.00      
5 Ag 1112 1069 0.00      
6 Ag 862 829 0.00      
7 Ag 698 671 0.00      
8 Ag 268 258 0.00      
9 Au 3194 3070 30.95      
10 Au 1143 1099 2.19      
11 Au 808 777 9.18      
12 Au 134 129 38.91      
13 Au 87 84 35.40      
14 Bg 3168 3046 0.00      
15 Bg 1313 1262 0.00      
16 Bg 981 943 0.00      
17 Bg 129 124 0.00      
18 Bu 3110 2990 31.37      
19 Bu 2497 2400 68.16      
20 Bu 1511 1452 8.65      
21 Bu 1286 1236 44.99      
22 Bu 864 831 4.09      
23 Bu 656 631 17.35      
24 Bu 197 189 10.38      

Unscaled Zero Point Vibrational Energy (zpe) 16237.2 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 15608.8 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 B3LYP/SDD
ABC
0.81483 0.04784 0.04599

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.764 0.000
C2 0.000 -0.764 0.000
S3 1.816 -1.346 0.000
S4 -1.816 1.346 0.000
H5 1.549 -2.695 0.000
H6 -1.549 2.695 0.000
H7 -0.489 -1.157 0.895
H8 -0.489 -1.157 -0.895
H9 0.489 1.157 0.895
H10 0.489 1.157 -0.895

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.52892.78431.90663.79012.47472.17522.17521.09301.0930
C21.52891.90662.78432.47473.79011.09301.09302.17522.1752
S32.78431.90664.52081.37465.25832.47992.47992.97092.9709
S41.90662.78434.52085.25831.37462.97092.97092.47992.4799
H53.79012.47471.37465.25836.21612.70552.70554.09364.0936
H62.47473.79015.25831.37466.21614.09364.09362.70552.7055
H72.17521.09302.47992.97092.70554.09361.79052.51183.0846
H82.17521.09302.47992.97092.70554.09361.79053.08462.5118
H91.09302.17522.97092.47994.09362.70552.51183.08461.7905
H101.09302.17522.97092.47994.09362.70553.08462.51181.7905

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 107.771 C1 C2 H7 111.031
C1 C2 H8 111.031 C1 S4 H6 96.565
C2 C1 S4 107.771 C2 C1 H9 111.031
C2 C1 H10 111.031 C2 S3 H5 96.565
S3 C2 H7 108.463 S3 C2 H8 108.463
S4 C1 H9 108.463 S4 C1 H10 108.463
H7 C2 H8 109.984 H9 C1 H10 109.984
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.570      
2 C -0.570      
3 S -0.026      
4 S -0.026      
5 H 0.088      
6 H 0.088      
7 H 0.254      
8 H 0.254      
9 H 0.254      
10 H 0.254      


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 9.724 -2.328 0.000
y -2.328 9.001 0.000
z 0.000 0.000 4.263


<r2> (average value of r2) Å2
<r2> 225.039
(<r2>)1/2 15.001