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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B3LYP/aug-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 B3LYP/aug-cc-pVQZ
 hartrees
Energy at 0K-836.989159
Energy at 298.15K 
HF Energy-836.989159
Nuclear repulsion energy141.062955
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 B3LYP/aug-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 210 204 4.79 5.04 0.38 0.55
2 A 287 278 7.06 1.40 0.16 0.28
3 A 626 607 2.16 15.43 0.14 0.25
4 A 900 872 3.29 9.38 0.08 0.16
5 A 1205 1167 0.58 3.41 0.73 0.85
6 A 1452 1406 1.37 9.73 0.60 0.75
7 A 2669 2586 0.04 148.88 0.07 0.13
8 A 3074 2979 5.63 106.59 0.07 0.12
9 B 240 233 31.64 0.22 0.75 0.86
10 B 705 683 4.47 0.31 0.75 0.86
11 B 732 709 28.88 5.49 0.75 0.86
12 B 1007 976 16.11 1.11 0.75 0.86
13 B 1258 1219 25.81 0.06 0.75 0.86
14 B 2668 2585 0.42 53.03 0.75 0.86
15 B 3129 3031 1.68 57.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10080.4 cm-1
Scaled (by 0.9689) Zero Point Vibrational Energy (zpe) 9766.9 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 B3LYP/aug-cc-pVQZ
ABC
0.89745 0.10381 0.09744

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVQZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.772
S2 0.000 1.555 -0.179
S3 0.000 -1.555 -0.179
H4 0.878 -0.055 1.410
H5 -0.878 0.055 1.410
H6 1.132 1.324 -0.863
H7 -1.132 -1.324 -0.863

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82331.82331.08631.08632.38952.3895
S21.82333.11092.42652.35541.34313.1687
S31.82333.11092.35542.42653.16871.3431
H41.08632.42652.35541.75882.67083.2892
H51.08632.35542.42651.75883.28922.6708
H62.38951.34313.16872.67083.28923.4839
H72.38953.16871.34313.28922.67083.4839

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.816 C1 S3 H7 96.816
S2 C1 S3 117.099 S2 C1 H4 110.437
S2 C1 H5 105.272 S3 C1 H4 105.272
S3 C1 H5 110.437 H4 C1 H5 108.106
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.772      
2 S 0.045      
3 S 0.045      
4 H 0.342      
5 H 0.342      
6 H -0.001      
7 H -0.001      


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 0.508 0.508
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.048 1.377 0.000
y 1.377 -38.919 0.000
z 0.000 0.000 -33.060
Traceless
 xyz
x 3.941 1.377 0.000
y 1.377 -6.365 0.000
z 0.000 0.000 2.424
Polar
3z2-r24.847
x2-y26.871
xy1.377
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.490 0.412 0.000
y 0.412 11.001 0.000
z 0.000 0.000 7.966


<r2> (average value of r2) Å2
<r2> 116.769
(<r2>)1/2 10.806