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 HSCH2SH (Methanedithiol)

using model chemistry: CCSD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-835.890524
Energy at 298.15K 
HF Energy-835.301041
Nuclear repulsion energy141.911537
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 CCSD/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD/aug-cc-pVTZ
ABC
0.88324 0.10621 0.09921

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.785
S2 0.000 1.539 -0.180
S3 0.000 -1.539 -0.180
H4 0.880 -0.050 1.421
H5 -0.880 0.050 1.421
H6 1.098 1.261 -0.896
H7 -1.098 -1.261 -0.896

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81681.81681.08711.08712.37122.3712
S21.81683.07862.42202.35701.34033.0919
S31.81683.07862.35702.42203.09191.3403
H41.08712.42202.35701.76272.67193.2786
H51.08712.35702.42201.76273.27862.6719
H62.37121.34033.09192.67193.27863.3440
H72.37123.09191.34033.27862.67193.3440

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.192 C1 S3 H7 96.192
S2 C1 S3 115.836 S2 C1 H4 110.505
S2 C1 H5 105.760 S3 C1 H4 105.760
S3 C1 H5 110.505 H4 C1 H5 108.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability