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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: TPSSh/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-836.971311
Energy at 298.15K 
HF Energy-836.971311
Nuclear repulsion energy141.538197
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/6-311+G(3df,2p)
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 205 205 3.77 5.23 0.42 0.59
2 A 289 289 8.82 0.92 0.15 0.26
3 A 628 628 2.62 14.19 0.14 0.24
4 A 895 895 3.61 8.45 0.08 0.14
5 A 1200 1200 0.55 4.24 0.68 0.81
6 A 1457 1457 1.09 9.83 0.64 0.78
7 A 2688 2688 0.05 131.86 0.08 0.15
8 A 3071 3071 6.57 102.83 0.07 0.13
9 B 239 239 34.03 0.12 0.75 0.86
10 B 695 695 3.05 0.40 0.75 0.86
11 B 735 735 30.80 5.24 0.75 0.86
12 B 1002 1002 16.55 1.15 0.75 0.86
13 B 1250 1250 27.18 0.10 0.75 0.86
14 B 2688 2688 0.27 54.23 0.75 0.86
15 B 3127 3127 1.85 59.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10084.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10084.0 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 TPSSh/6-311+G(3df,2p)
ABC
0.89307 0.10501 0.09840

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.776
S2 0.000 1.547 -0.179
S3 0.000 -1.547 -0.179
H4 0.881 -0.056 1.413
H5 -0.881 0.056 1.413
H6 1.121 1.297 -0.873
H7 -1.121 -1.297 -0.873

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81831.81831.08831.08832.37902.3790
S21.81833.09412.42482.35291.34203.1350
S31.81833.09412.35292.42483.13501.3420
H41.08832.42482.35291.76492.66723.2827
H51.08832.35292.42481.76493.28272.6672
H62.37901.34203.13502.66723.28273.4293
H72.37903.13501.34203.28272.66723.4293

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.500 C1 S3 H7 96.500
S2 C1 S3 116.603 S2 C1 H4 110.546
S2 C1 H5 105.314 S3 C1 H4 105.314
S3 C1 H5 110.546 H4 C1 H5 108.354
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.086      
2 S -0.306      
3 S -0.306      
4 H 0.125      
5 H 0.125      
6 H 0.138      
7 H 0.138      


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 0.509 0.509
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 7.090 0.393 0.000
y 0.393 10.648 0.000
z 0.000 0.000 7.572


<r2> (average value of r2) Å2
<r2> 115.685
(<r2>)1/2 10.756