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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP2/daug-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 MP2/daug-cc-pVTZ
 hartrees
Energy at 0K-835.848753
Energy at 298.15K 
HF Energy-835.301109
Nuclear repulsion energy142.354011
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/daug-cc-pVTZ
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 219 219 3.12 3.78 0.35 0.52
2 A 300 300 7.55 0.89 0.17 0.28
3 A 657 657 2.96 14.22 0.13 0.23
4 A 914 914 4.18 8.73 0.08 0.15
5 A 1213 1213 0.54 3.07 0.71 0.83
6 A 1469 1469 0.96 8.27 0.61 0.76
7 A 2756 2756 0.29 146.02 0.05 0.10
8 A 3111 3111 4.38 107.81 0.06 0.11
9 B 239 239 33.32 0.17 0.75 0.86
10 B 726 726 0.78 0.49 0.75 0.86
11 B 793 793 18.95 5.22 0.75 0.86
12 B 1009 1009 16.26 0.85 0.75 0.86
13 B 1263 1263 21.95 0.05 0.75 0.86
14 B 2756 2756 0.29 47.01 0.75 0.86
15 B 3174 3174 1.68 53.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10298.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10298.6 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 MP2/daug-cc-pVTZ
ABC
0.88365 0.10715 0.09997

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/daug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.786
S2 0.000 1.533 -0.180
S3 0.000 -1.533 -0.180
H4 0.880 -0.053 1.422
H5 -0.880 0.053 1.422
H6 1.085 1.235 -0.904
H7 -1.085 -1.235 -0.904

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81191.81191.08751.08752.35762.3576
S21.81193.06632.42042.35171.33823.0601
S31.81193.06632.35172.42043.06011.3382
H41.08752.42042.35171.76382.66703.2664
H51.08752.35172.42041.76383.26642.6670
H62.35761.33823.06012.66703.26643.2877
H72.35763.06011.33823.26642.66703.2877

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.734 C1 S3 H7 95.734
S2 C1 S3 115.593 S2 C1 H4 110.693
S2 C1 H5 105.679 S3 C1 H4 105.679
S3 C1 H5 110.693 H4 C1 H5 108.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability