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: B2PLYP=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP=FULL/STO-3G
 hartrees
Energy at 0K-827.178467
Energy at 298.15K 
HF Energy-827.140482
Nuclear repulsion energy140.230497
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 B2PLYP=FULL/STO-3G
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 226 226 8.35 20.88 0.73 0.84
2 A 304 304 7.95 5.91 0.63 0.77
3 A 754 754 1.12 9.88 0.12 0.22
4 A 1048 1048 0.12 9.75 0.55 0.71
5 A 1368 1368 0.75 21.03 0.75 0.86
6 A 1679 1679 0.05 15.46 0.75 0.86
7 A 3021 3021 6.35 83.69 0.17 0.29
8 A 3350 3350 6.35 38.76 0.14 0.25
9 B 258 258 17.76 5.89 0.75 0.86
10 B 798 798 0.21 1.02 0.75 0.86
11 B 925 925 14.31 9.56 0.75 0.86
12 B 1176 1176 25.04 4.43 0.75 0.86
13 B 1434 1434 24.43 3.34 0.75 0.86
14 B 3021 3021 42.07 39.07 0.75 0.86
15 B 3462 3462 2.13 32.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11411.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11411.8 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 B2PLYP=FULL/STO-3G
ABC
0.88869 0.10249 0.09654

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.768
S2 0.000 1.564 -0.185
S3 0.000 -1.564 -0.185
H4 0.884 -0.045 1.428
H5 -0.884 0.045 1.428
H6 1.201 1.333 -0.769
H7 -1.201 -1.333 -0.769

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83161.83161.10381.10382.36262.3626
S21.83163.12792.44372.38541.35493.1900
S31.83163.12792.38542.44373.19001.3549
H41.10382.44372.38541.77012.61263.2910
H51.10382.38542.44371.77013.29102.6126
H62.36261.35493.19002.61263.29103.5882
H72.36263.19001.35493.29102.61263.5882

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 94.522 C1 S3 H7 94.522
S2 C1 S3 117.273 S2 C1 H4 110.231
S2 C1 H5 106.037 S3 C1 H4 106.037
S3 C1 H5 110.231 H4 C1 H5 106.603
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability