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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B2PLYP=FULL/3-21G

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/3-21G
 hartrees
Energy at 0K-832.308794
Energy at 298.15K 
HF Energy-832.233881
Nuclear repulsion energy136.908295
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/3-21G
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 237 226 9.18 25.22 0.64 0.78
2 A 279 265 29.87 19.42 0.70 0.82
3 A 586 558 5.76 21.28 0.17 0.29
4 A 886 844 5.25 20.30 0.66 0.80
5 A 1227 1168 1.41 26.92 0.73 0.84
6 A 1521 1448 3.07 20.17 0.75 0.86
7 A 2477 2358 7.65 134.04 0.19 0.32
8 A 3168 3016 4.35 83.04 0.11 0.20
9 B 240 229 57.03 6.84 0.75 0.86
10 B 685 652 44.19 11.63 0.75 0.86
11 B 724 689 0.08 6.54 0.75 0.86
12 B 1006 957 28.41 11.16 0.75 0.86
13 B 1286 1224 24.12 1.87 0.75 0.86
14 B 2477 2358 28.57 97.94 0.75 0.86
15 B 3240 3085 0.00 59.89 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10019.0 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 9538.0 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/3-21G
ABC
0.82035 0.09832 0.09188

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.827
S2 0.000 1.599 -0.191
S3 0.000 -1.599 -0.191
H4 0.889 -0.051 1.448
H5 -0.889 0.051 1.448
H6 1.164 1.341 -0.868
H7 -1.164 -1.341 -0.868

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.89581.89581.08591.08592.45542.4554
S21.89583.19812.49052.42351.37143.2339
S31.89583.19812.42352.49053.23391.3714
H41.08592.49052.42351.78152.71683.3536
H51.08592.42352.49051.78153.35362.7168
H62.45541.37143.23392.71683.35363.5518
H72.45543.23391.37143.35362.71683.5518

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.114 C1 S3 H7 96.114
S2 C1 S3 115.016 S2 C1 H4 110.315
S2 C1 H5 105.502 S3 C1 H4 105.502
S3 C1 H5 110.315 H4 C1 H5 110.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability