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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B3PW91/6-311+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 B3PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-836.853604
Energy at 298.15K 
HF Energy-836.853604
Nuclear repulsion energy141.933080
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 B3PW91/6-311+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 208 200 4.99 6.49 0.09 0.16
2 A 290 278 7.78 1.15 0.75 0.86
3 A 640 613 2.06 19.58 0.05 0.10
4 A 903 864 3.73 8.86 0.07 0.13
5 A 1201 1150 0.43 3.97 0.71 0.83
6 A 1443 1382 2.13 9.13 0.48 0.65
7 A 2697 2582 0.00 232.33 0.07 0.13
8 A 3078 2947 4.97 65.89 0.05 0.10
9 B 240 229 32.87 0.86 0.75 0.86
10 B 702 672 2.02 0.89 0.75 0.86
11 B 757 725 27.65 4.45 0.75 0.86
12 B 1004 962 16.73 1.97 0.75 0.86
13 B 1251 1198 22.99 0.59 0.75 0.86
14 B 2696 2581 0.04 109.42 0.75 0.86
15 B 3134 3001 1.86 55.78 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10122.7 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 9690.5 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 B3PW91/6-311+G(3df,2p)
ABC
0.90165 0.10552 0.09896

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.769
S2 0.000 1.543 -0.178
S3 0.000 -1.543 -0.178
H4 0.878 -0.055 1.410
H5 -0.878 0.055 1.410
H6 1.126 1.301 -0.868
H7 -1.126 -1.301 -0.868

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81061.81061.08861.08862.37482.3748
S21.81063.08592.41822.34681.34213.1355
S31.81063.08592.34682.41823.13551.3421
H41.08862.41822.34681.75982.66253.2797
H51.08862.34682.41821.75983.27972.6625
H62.37481.34213.13552.66253.27973.4411
H72.37483.13551.34213.27972.66253.4411

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.617 C1 S3 H7 96.617
S2 C1 S3 116.900 S2 C1 H4 110.562
S2 C1 H5 105.360 S3 C1 H4 105.360
S3 C1 H5 110.562 H4 C1 H5 107.865
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.052      
2 S -0.291      
3 S -0.291      
4 H 0.165      
5 H 0.165      
6 H 0.152      
7 H 0.152      


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 0.493 0.493
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.696 1.377 0.000
y 1.377 -38.633 0.000
z 0.000 0.000 -32.637
Traceless
 xyz
x 3.939 1.377 0.000
y 1.377 -6.466 0.000
z 0.000 0.000 2.527
Polar
3z2-r25.054
x2-y26.937
xy1.377
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.075 0.386 0.000
y 0.386 10.501 0.000
z 0.000 0.000 7.531


<r2> (average value of r2) Å2
<r2> 115.136
(<r2>)1/2 10.730