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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B2PLYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-827.177945
Energy at 298.15K 
HF Energy-827.140479
Nuclear repulsion energy140.224098
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/STO-3G
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 226 226 8.36 20.88 0.73 0.84
2 A 304 304 7.96 5.91 0.63 0.77
3 A 754 754 1.13 9.89 0.12 0.22
4 A 1047 1047 0.12 9.75 0.55 0.71
5 A 1368 1368 0.75 21.03 0.75 0.86
6 A 1679 1679 0.05 15.46 0.75 0.86
7 A 3021 3021 6.33 83.71 0.17 0.29
8 A 3350 3350 6.33 38.76 0.14 0.25
9 B 258 258 17.79 5.90 0.75 0.86
10 B 798 798 0.21 1.02 0.75 0.86
11 B 925 925 14.31 9.57 0.75 0.86
12 B 1176 1176 25.01 4.43 0.75 0.86
13 B 1434 1434 24.44 3.33 0.75 0.86
14 B 3021 3021 42.02 39.08 0.75 0.86
15 B 3462 3462 2.12 32.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11410.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11410.7 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/STO-3G
ABC
0.88852 0.10249 0.09654

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.768
S2 0.000 1.564 -0.185
S3 0.000 -1.564 -0.185
H4 0.884 -0.045 1.428
H5 -0.884 0.045 1.428
H6 1.201 1.333 -0.769
H7 -1.201 -1.333 -0.769

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83171.83171.10391.10392.36272.3627
S21.83173.12802.44382.38561.35493.1901
S31.83173.12802.38562.44383.19011.3549
H41.10392.44382.38561.77022.61273.2912
H51.10392.38562.44381.77023.29122.6127
H62.36271.35493.19012.61273.29123.5883
H72.36273.19011.35493.29122.61273.5883

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 94.523 C1 S3 H7 94.523
S2 C1 S3 117.268 S2 C1 H4 110.230
S2 C1 H5 106.038 S3 C1 H4 106.038
S3 C1 H5 110.230 H4 C1 H5 106.609
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.288      
2 S 0.100      
3 S 0.100      
4 H 0.072      
5 H 0.072      
6 H -0.029      
7 H -0.029      


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 0.154 0.154
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.231 1.625 0.000
y 1.625 -32.789 0.000
z 0.000 0.000 -29.230
Traceless
 xyz
x 2.779 1.625 0.000
y 1.625 -4.059 0.000
z 0.000 0.000 1.280
Polar
3z2-r22.561
x2-y24.559
xy1.625
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.698 0.135 0.000
y 0.135 3.670 0.000
z 0.000 0.000 2.208


<r2> (average value of r2) Å2
<r2> 114.969
(<r2>)1/2 10.722