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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3/6-311+G(3df,2p)
 hartrees
Energy at 0K-835.858446
Energy at 298.15K 
HF Energy-835.290166
Nuclear repulsion energy142.302543
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 MP3/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3130 3130 5.02      
2 A 2743 2743 0.00      
3 A 1487 1487 1.33      
4 A 1231 1231 0.45      
5 A 929 929 3.91      
6 A 662 662 2.50      
7 A 299 299 7.54      
8 A 224 224 4.20      
9 B 3187 3187 1.44      
10 B 2742 2742 0.00      
11 B 1290 1290 20.99      
12 B 1029 1029 18.47      
13 B 802 802 17.14      
14 B 727 727 0.55      
15 B 241 241 30.61      

Unscaled Zero Point Vibrational Energy (zpe) 10360.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10360.6 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 MP3/6-311+G(3df,2p)
ABC
0.89276 0.10662 0.09967

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.779
S2 0.000 1.536 -0.179
S3 0.000 -1.536 -0.179
H4 0.877 -0.052 1.416
H5 -0.877 0.052 1.416
H6 1.098 1.267 -0.891
H7 -1.098 -1.267 -0.891

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81011.81011.08581.08582.36592.3659
S21.81013.07232.41602.34861.33643.0933
S31.81013.07232.34862.41603.09331.3364
H41.08582.41602.34861.75752.66683.2711
H51.08582.34862.41601.75753.27112.6668
H62.36591.33643.09332.66683.27113.3528
H72.36593.09331.33643.27112.66683.3528

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.354 C1 S3 H7 96.354
S2 C1 S3 116.132 S2 C1 H4 110.582
S2 C1 H5 105.653 S3 C1 H4 105.653
S3 C1 H5 110.582 H4 C1 H5 108.059
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability