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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: TPSSh/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at TPSSh/cc-pVQZ
 hartrees
Energy at 0K-836.988969
Energy at 298.15K 
HF Energy-836.988969
Nuclear repulsion energy141.431485
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 TPSSh/cc-pVQZ
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 203 203 3.79 5.93 0.53 0.69
2 A 288 288 9.32 3.38 0.44 0.61
3 A 628 628 2.98 13.68 0.13 0.23
4 A 892 892 3.46 6.63 0.12 0.22
5 A 1199 1199 0.59 4.77 0.67 0.80
6 A 1457 1457 0.90 9.42 0.71 0.83
7 A 2683 2683 0.14 133.48 0.08 0.16
8 A 3070 3070 7.29 110.32 0.06 0.12
9 B 239 239 35.40 0.42 0.75 0.86
10 B 696 696 2.53 0.32 0.75 0.86
11 B 735 735 31.33 5.68 0.75 0.86
12 B 1000 1000 15.86 1.84 0.75 0.86
13 B 1250 1250 27.05 0.12 0.75 0.86
14 B 2683 2683 0.67 62.67 0.75 0.86
15 B 3127 3127 1.68 59.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10074.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10074.9 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 TPSSh/cc-pVQZ
ABC
0.89114 0.10487 0.09823

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVQZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.778
S2 0.000 1.548 -0.179
S3 0.000 -1.548 -0.179
H4 0.881 -0.055 1.414
H5 -0.881 0.055 1.414
H6 1.117 1.293 -0.879
H7 -1.117 -1.293 -0.879

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82031.82031.08781.08782.38012.3801
S21.82033.09672.42612.35461.34273.1321
S31.82033.09672.35462.42613.13211.3427
H41.08782.42612.35461.76452.67083.2835
H51.08782.35462.42611.76453.28352.6708
H62.38011.34273.13212.67083.28353.4172
H72.38013.13211.34273.28352.67083.4172

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.444 C1 S3 H7 96.444
S2 C1 S3 116.555 S2 C1 H4 110.535
S2 C1 H5 105.334 S3 C1 H4 105.334
S3 C1 H5 110.535 H4 C1 H5 108.391
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.464      
2 S -0.076      
3 S -0.076      
4 H 0.206      
5 H 0.206      
6 H 0.102      
7 H 0.102      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.494 0.494
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.687 0.257 0.000
y 0.257 10.228 0.000
z 0.000 0.000 7.085


<r2> (average value of r2) Å2
<r2> 115.701
(<r2>)1/2 10.756