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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: PBEPBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-836.450928
Energy at 298.15K 
HF Energy-836.450928
Nuclear repulsion energy140.028568
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 PBEPBE/6-31G**
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 220 217 6.74 12.47 0.59 0.74
2 A 294 290 18.74 7.93 0.62 0.77
3 A 615 606 3.25 13.10 0.22 0.36
4 A 875 863 4.35 11.44 0.43 0.60
5 A 1176 1160 1.56 22.72 0.66 0.79
6 A 1414 1395 2.56 17.79 0.74 0.85
7 A 2623 2587 2.95 121.74 0.14 0.25
8 A 3029 2988 7.48 98.84 0.10 0.18
9 B 253 250 48.33 1.22 0.75 0.86
10 B 690 680 6.49 1.06 0.75 0.86
11 B 716 706 39.89 8.01 0.75 0.86
12 B 978 965 26.23 8.20 0.75 0.86
13 B 1230 1213 28.28 5.66 0.75 0.86
14 B 2622 2586 8.80 91.54 0.75 0.86
15 B 3091 3049 1.02 68.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9912.7 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 9776.9 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 PBEPBE/6-31G**
ABC
0.88648 0.10233 0.09605

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.775
S2 0.000 1.567 -0.179
S3 0.000 -1.567 -0.179
H4 0.886 -0.061 1.424
H5 -0.886 0.061 1.424
H6 1.136 1.312 -0.878
H7 -1.136 -1.312 -0.878

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83491.83491.10001.10002.39702.3970
S21.83493.13472.45062.37161.35803.1735
S31.83493.13472.37162.45063.17351.3580
H41.10002.45062.37161.77672.69203.3097
H51.10002.37162.45061.77673.30972.6920
H62.39701.35803.17352.69203.30973.4713
H72.39703.17351.35803.30972.69203.4713

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.157 C1 S3 H7 96.157
S2 C1 S3 117.337 S2 C1 H4 110.725
S2 C1 H5 105.037 S3 C1 H4 105.037
S3 C1 H5 110.725 H4 C1 H5 107.721
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.522      
2 S -0.030      
3 S -0.030      
4 H 0.197      
5 H 0.197      
6 H 0.095      
7 H 0.095      


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 0.427 0.427
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.482 2.023 0.000
y 2.023 -39.025 0.000
z 0.000 0.000 -32.315
Traceless
 xyz
x 4.188 2.023 0.000
y 2.023 -7.127 0.000
z 0.000 0.000 2.939
Polar
3z2-r25.877
x2-y27.544
xy2.023
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.409 0.142 0.000
y 0.142 8.400 0.000
z 0.000 0.000 5.518


<r2> (average value of r2) Å2
<r2> 117.848
(<r2>)1/2 10.856