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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B2PLYP=FULLultrafine/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=FULLultrafine/3-21G*
 hartrees
Energy at 0K-832.577791
Energy at 298.15K 
HF Energy-832.456852
Nuclear repulsion energy140.860705
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=FULLultrafine/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 244 244 7.09 14.52 0.63 0.77
2 A 303 303 19.77 10.77 0.67 0.80
3 A 630 630 3.23 16.20 0.18 0.31
4 A 944 944 5.25 12.61 0.60 0.75
5 A 1266 1266 1.48 25.87 0.70 0.83
6 A 1540 1540 4.44 21.19 0.74 0.85
7 A 2735 2735 2.78 106.06 0.17 0.28
8 A 3118 3118 7.13 83.39 0.12 0.21
9 B 262 262 47.46 2.33 0.75 0.86
10 B 728 728 29.34 6.63 0.75 0.86
11 B 754 754 0.48 5.97 0.75 0.86
12 B 1054 1054 26.42 7.71 0.75 0.86
13 B 1322 1322 15.16 4.12 0.75 0.86
14 B 2734 2734 6.84 82.08 0.75 0.86
15 B 3172 3172 0.52 62.84 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10403.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10403.8 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=FULLultrafine/3-21G*
ABC
0.87049 0.10447 0.09761

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.792
S2 0.000 1.552 -0.183
S3 0.000 -1.552 -0.183
H4 0.881 -0.051 1.432
H5 -0.881 0.051 1.432
H6 1.112 1.279 -0.884
H7 -1.112 -1.279 -0.884

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83271.83271.09031.09032.38342.3834
S21.83273.10372.44012.37421.34213.1213
S31.83273.10372.37422.44013.12131.3421
H41.09032.44012.37421.76572.68053.2928
H51.09032.37422.44011.76573.29282.6805
H62.38341.34213.12132.68053.29283.3896
H72.38343.12131.34213.29282.68053.3896

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.073 C1 S3 H7 96.073
S2 C1 S3 115.722 S2 C1 H4 110.601
S2 C1 H5 105.813 S3 C1 H4 105.813
S3 C1 H5 110.601 H4 C1 H5 108.135
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability