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: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-98.947224
Energy at 298.15K-98.953528
Nuclear repulsion energy90.712470
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 HF/LANL2DZ
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 3288 2959 0.00      
2 Ag 2715 2443 0.00      
3 Ag 1648 1483 0.00      
4 Ag 1483 1335 0.00      
5 Ag 1184 1066 0.00      
6 Ag 943 849 0.00      
7 Ag 752 677 0.00      
8 Ag 293 264 0.00      
9 Au 3375 3037 33.92      
10 Au 1253 1128 1.82      
11 Au 863 776 5.43      
12 Au 150 135 59.33      
13 Au 95 86 38.54      
14 Bg 3355 3019 0.00      
15 Bg 1434 1290 0.00      
16 Bg 1074 967 0.00      
17 Bg 151 136 0.00      
18 Bu 3293 2963 41.64      
19 Bu 2715 2443 57.50      
20 Bu 1645 1480 9.36      
21 Bu 1408 1267 70.81      
22 Bu 939 845 9.59      
23 Bu 714 642 28.09      
24 Bu 215 194 12.64      

Unscaled Zero Point Vibrational Energy (zpe) 17490.9 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 15740.1 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 HF/LANL2DZ
ABC
0.83713 0.04842 0.04656

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.763 0.000
C2 0.000 -0.763 0.000
S3 1.793 -1.352 0.000
S4 -1.793 1.352 0.000
H5 1.565 -2.685 0.000
H6 -1.565 2.685 0.000
H7 -0.486 -1.149 0.880
H8 -0.486 -1.149 -0.880
H9 0.486 1.149 0.880
H10 0.486 1.149 -0.880

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.52532.77211.88703.78622.47892.16012.16011.07751.0775
C21.52531.88702.77212.47893.78621.07751.07752.16012.1601
S32.77211.88704.49041.35225.25072.45162.45162.95552.9555
S41.88702.77214.49045.25071.35222.95552.95552.45162.4516
H53.78622.47891.35225.25076.21552.71002.71004.07884.0788
H62.47893.78625.25071.35226.21554.07884.07882.71002.7100
H72.16011.07752.45162.95552.71004.07881.76092.49533.0541
H82.16011.07752.45162.95552.71004.07881.76093.05412.4953
H91.07752.16012.95552.45164.07882.71002.49533.05411.7609
H101.07752.16012.95552.45164.07882.71003.05412.49531.7609

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 108.192 C1 C2 H7 111.007
C1 C2 H8 111.007 C1 S4 H6 98.517
C2 C1 S4 108.192 C2 C1 H9 111.007
C2 C1 H10 111.007 C2 S3 H5 98.517
S3 C2 H7 108.479 S3 C2 H8 108.479
S4 C1 H9 108.479 S4 C1 H10 108.479
H7 C2 H8 109.596 H9 C1 H10 109.596
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.512      
2 C -0.512      
3 S -0.030      
4 S -0.030      
5 H 0.069      
6 H 0.069      
7 H 0.236      
8 H 0.236      
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
  0.000 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 9.711 -2.431 0.000
y -2.431 8.804 0.000
z 0.000 0.000 3.448


<r2> (average value of r2) Å2
<r2> 121.708
(<r2>)1/2 11.032