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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-836.766475
Energy at 298.15K 
HF Energy-836.766475
Nuclear repulsion energy141.019239
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 B3PW91/6-31G*
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 233 223 6.62 11.23 0.60 0.75
2 A 302 289 20.51 7.52 0.64 0.78
3 A 643 615 3.57 14.22 0.20 0.34
4 A 914 875 4.76 10.94 0.50 0.67
5 A 1230 1177 1.53 22.98 0.67 0.80
6 A 1478 1414 3.14 17.34 0.74 0.85
7 A 2711 2594 4.99 121.25 0.17 0.29
8 A 3109 2974 8.10 94.63 0.11 0.20
9 B 259 248 48.02 1.15 0.75 0.86
10 B 721 690 3.04 1.47 0.75 0.86
11 B 759 726 34.11 9.35 0.75 0.86
12 B 1024 980 30.29 7.77 0.75 0.86
13 B 1291 1235 26.35 4.22 0.75 0.86
14 B 2711 2593 13.38 99.54 0.75 0.86
15 B 3169 3032 1.01 69.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10276.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9831.8 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 B3PW91/6-31G*
ABC
0.89311 0.10400 0.09753

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.773
S2 0.000 1.555 -0.179
S3 0.000 -1.555 -0.179
H4 0.880 -0.057 1.419
H5 -0.880 0.057 1.419
H6 1.126 1.304 -0.875
H7 -1.126 -1.304 -0.875

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82311.82311.09281.09282.38462.3846
S21.82313.10922.43382.36041.34753.1505
S31.82313.10922.36042.43383.15051.3475
H41.09282.43382.36041.76332.67863.2929
H51.09282.36042.43381.76333.29292.6786
H62.38461.34753.15052.67863.29293.4463
H72.38463.15051.34753.29292.67863.4463

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.392 C1 S3 H7 96.392
S2 C1 S3 117.022 S2 C1 H4 110.657
S2 C1 H5 105.337 S3 C1 H4 105.337
S3 C1 H5 110.657 H4 C1 H5 107.562
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.620      
2 S -0.057      
3 S -0.057      
4 H 0.241      
5 H 0.241      
6 H 0.126      
7 H 0.126      


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 0.436 0.436
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.444 2.089 0.000
y 2.089 -39.139 0.000
z 0.000 0.000 -32.234
Traceless
 xyz
x 4.243 2.089 0.000
y 2.089 -7.300 0.000
z 0.000 0.000 3.058
Polar
3z2-r26.115
x2-y27.695
xy2.089
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.281 0.131 0.000
y 0.131 7.973 0.000
z 0.000 0.000 5.390


<r2> (average value of r2) Å2
<r2> 116.408
(<r2>)1/2 10.789