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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-836.747373
Energy at 298.15K 
HF Energy-836.747373
Nuclear repulsion energy134.993971
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 BLYP/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 215 213 10.21 23.96 0.60 0.75
2 A 270 268 25.03 14.49 0.65 0.79
3 A 559 554 5.22 20.21 0.19 0.31
4 A 832 826 4.06 18.23 0.53 0.69
5 A 1168 1159 2.12 26.17 0.70 0.83
6 A 1446 1435 1.79 20.56 0.75 0.86
7 A 2409 2391 14.75 147.82 0.19 0.32
8 A 3059 3036 9.40 98.46 0.10 0.19
9 B 232 230 55.75 4.68 0.75 0.86
10 B 621 616 73.30 8.87 0.75 0.86
11 B 688 683 0.05 5.41 0.75 0.86
12 B 957 950 24.48 12.11 0.75 0.86
13 B 1236 1227 31.80 4.28 0.75 0.86
14 B 2410 2391 61.09 110.08 0.75 0.86
15 B 3138 3114 1.59 66.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9619.9 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 9546.8 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 BLYP/6-31G
ABC
0.82707 0.09443 0.08871

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.815
S2 0.000 1.631 -0.189
S3 0.000 -1.631 -0.189
H4 0.897 -0.058 1.443
H5 -0.897 0.058 1.443
H6 1.196 1.396 -0.864
H7 -1.196 -1.396 -0.864

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.91531.91531.09601.09602.48962.4896
S21.91533.26192.51372.43761.39303.3239
S31.91533.26192.43762.51373.32391.3930
H41.09602.51372.43761.79692.74293.3897
H51.09602.43762.51371.79693.38972.7429
H62.48961.39303.32392.74293.38973.6766
H72.48963.32391.39303.38972.74293.6766

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.337 C1 S3 H7 96.337
S2 C1 S3 116.759 S2 C1 H4 110.191
S2 C1 H5 104.796 S3 C1 H4 104.796
S3 C1 H5 110.191 H4 C1 H5 110.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.608      
2 S 0.034      
3 S 0.034      
4 H 0.205      
5 H 0.205      
6 H 0.065      
7 H 0.065      


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 0.532 0.532
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.786 2.854 0.000
y 2.854 -40.532 0.000
z 0.000 0.000 -32.924
Traceless
 xyz
x 4.942 2.854 0.000
y 2.854 -8.177 0.000
z 0.000 0.000 3.235
Polar
3z2-r26.469
x2-y28.746
xy2.854
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.446 0.140 0.000
y 0.140 8.859 0.000
z 0.000 0.000 5.217


<r2> (average value of r2) Å2
<r2> 126.189
(<r2>)1/2 11.233