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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-836.836532
Energy at 298.15K 
HF Energy-836.836532
Nuclear repulsion energy141.009387
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 B3PW91/6-311G**
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 228 220 10.02 12.54 0.65 0.79
2 A 295 284 15.08 9.05 0.66 0.79
3 A 638 615 2.52 13.38 0.17 0.29
4 A 900 867 5.11 7.33 0.38 0.55
5 A 1217 1172 1.94 13.17 0.66 0.79
6 A 1441 1387 2.47 12.77 0.73 0.84
7 A 2690 2591 0.37 145.23 0.16 0.27
8 A 3092 2977 8.18 102.53 0.09 0.16
9 B 257 247 42.69 3.00 0.75 0.86
10 B 707 681 4.05 0.60 0.75 0.86
11 B 749 721 41.36 8.40 0.75 0.86
12 B 1010 973 31.55 5.03 0.75 0.86
13 B 1272 1225 28.16 1.33 0.75 0.86
14 B 2690 2590 1.81 95.04 0.75 0.86
15 B 3149 3033 0.98 66.89 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10166.1 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 9791.0 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 B3PW91/6-311G**
ABC
0.90186 0.10357 0.09739

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.766
S2 0.000 1.557 -0.179
S3 0.000 -1.557 -0.179
H4 0.878 -0.055 1.410
H5 -0.878 0.055 1.410
H6 1.154 1.332 -0.838
H7 -1.154 -1.332 -0.838

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82141.82141.09011.09012.38352.3835
S21.82143.11332.42812.35601.34763.1798
S31.82143.11332.35602.42813.17981.3476
H41.09012.42812.35601.75952.65633.2885
H51.09012.35602.42811.75953.28852.6563
H62.38351.34763.17982.65633.28853.5250
H72.38353.17981.34763.28852.65633.5250

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.405 C1 S3 H7 96.405
S2 C1 S3 117.440 S2 C1 H4 110.485
S2 C1 H5 105.259 S3 C1 H4 105.259
S3 C1 H5 110.485 H4 C1 H5 107.622
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.559      
2 S -0.022      
3 S -0.022      
4 H 0.202      
5 H 0.202      
6 H 0.099      
7 H 0.099      


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 0.438 0.438
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.715 2.082 0.000
y 2.082 -39.578 0.000
z 0.000 0.000 -33.119
Traceless
 xyz
x 4.633 2.082 0.000
y 2.082 -7.161 0.000
z 0.000 0.000 2.528
Polar
3z2-r25.055
x2-y27.863
xy2.082
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.651 0.111 0.000
y 0.111 8.914 0.000
z 0.000 0.000 5.636


<r2> (average value of r2) Å2
<r2> 116.973
(<r2>)1/2 10.815