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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-28.275006
Energy at 298.15K 
HF Energy-28.275006
Nuclear repulsion energy37.551129
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/CEP-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 229 222 10.36 33.50 0.64 0.78
2 A 280 271 33.66 24.99 0.71 0.83
3 A 591 573 6.98 28.57 0.13 0.23
4 A 855 828 3.92 17.31 0.55 0.71
5 A 1187 1149 1.68 26.97 0.74 0.85
6 A 1446 1400 2.32 21.01 0.71 0.83
7 A 2491 2413 13.91 184.71 0.18 0.31
8 A 3118 3019 23.42 121.60 0.07 0.14
9 B 239 232 58.71 13.37 0.75 0.86
10 B 684 662 70.30 15.40 0.75 0.86
11 B 709 686 0.05 3.90 0.75 0.86
12 B 987 956 35.39 9.38 0.75 0.86
13 B 1264 1224 29.28 1.32 0.75 0.86
14 B 2493 2414 69.32 126.06 0.75 0.86
15 B 3205 3104 6.43 70.98 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9888.6 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 9576.1 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/CEP-31G
ABC
0.83157 0.09558 0.08978

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.811
S2 0.000 1.621 -0.189
S3 0.000 -1.621 -0.189
H4 0.896 -0.056 1.442
H5 -0.896 0.056 1.442
H6 1.197 1.396 -0.857
H7 -1.197 -1.396 -0.857

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.90421.90421.09751.09752.48292.4829
S21.90423.24122.50492.43091.38943.3134
S31.90423.24122.43092.50493.31341.3894
H41.09752.50492.43091.79642.73593.3857
H51.09752.43092.50491.79643.38572.7359
H62.48291.38943.31342.73593.38573.6777
H72.48293.31341.38943.38572.73593.6777

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.604 C1 S3 H7 96.604
S2 C1 S3 116.654 S2 C1 H4 110.206
S2 C1 H5 104.958 S3 C1 H4 104.958
S3 C1 H5 110.206 H4 C1 H5 109.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.612      
2 S 0.019      
3 S 0.019      
4 H 0.231      
5 H 0.231      
6 H 0.056      
7 H 0.056      


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 0.453 0.453
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.089 3.068 0.000
y 3.068 -39.590 0.000
z 0.000 0.000 -31.448
Traceless
 xyz
x 5.430 3.068 0.000
y 3.068 -8.821 0.000
z 0.000 0.000 3.392
Polar
3z2-r26.783
x2-y29.500
xy3.068
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.834 -0.117 0.000
y -0.117 8.676 0.000
z 0.000 0.000 4.730


<r2> (average value of r2) Å2
<r2> 69.633
(<r2>)1/2 8.345