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: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-874.804247
Energy at 298.15K 
HF Energy-874.255912
Nuclear repulsion energy203.049380
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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
0.84489 0.05099 0.04897

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.486 0.582 0.000
C2 -0.486 -0.582 0.000
S3 0.486 -2.131 0.000
S4 -0.486 2.131 0.000
H5 -0.568 -2.943 0.000
H6 0.568 2.943 0.000
H7 -1.114 -0.544 0.888
H8 -1.114 -0.544 -0.888
H9 1.114 0.544 0.888
H10 1.114 0.544 -0.888

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.51592.71261.82823.67912.36272.14852.14851.08861.0886
C21.51591.82822.71262.36273.67911.08861.08862.14852.1485
S32.71261.82824.37071.33045.07452.42182.42182.88772.8877
S41.82822.71264.37075.07451.33042.88772.88772.42182.4218
H53.67912.36271.33045.07455.99482.61582.61583.97223.9722
H62.36273.67915.07451.33045.99483.97223.97222.61582.6158
H72.14851.08862.42182.88772.61583.97221.77642.47973.0503
H82.14851.08862.42182.88772.61583.97221.77643.05032.4797
H91.08862.14852.88772.42183.97222.61582.47973.05031.7764
H101.08862.14852.88772.42183.97222.61583.05032.47971.7764

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 108.051 C1 C2 H7 110.077
C1 C2 H8 110.077 C1 S4 H6 95.543
C2 C1 S4 108.051 C2 C1 H9 110.077
C2 C1 H10 110.077 C2 S3 H5 95.543
S3 C2 H7 109.634 S3 C2 H8 109.634
S4 C1 H9 109.634 S4 C1 H10 109.634
H7 C2 H8 109.350 H9 C1 H10 109.350
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability