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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-59.921847
Energy at 298.15K 
HF Energy-59.921847
Nuclear repulsion energy48.019467
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 HF/LANL2DZ
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 261 235 16.85 45.83 0.71 0.83
2 A 301 271 31.34 29.35 0.68 0.81
3 A 649 584 8.94 39.93 0.11 0.20
4 A 963 866 3.48 18.84 0.73 0.84
5 A 1341 1207 1.21 24.89 0.75 0.86
6 A 1603 1443 1.38 16.47 0.73 0.84
7 A 2729 2456 8.91 199.12 0.14 0.24
8 A 3322 2989 22.74 127.79 0.06 0.12
9 B 252 227 60.20 16.38 0.75 0.86
10 B 779 701 37.44 16.82 0.75 0.86
11 B 783 705 4.18 16.14 0.75 0.86
12 B 1101 990 28.46 7.20 0.75 0.86
13 B 1414 1272 21.75 0.09 0.75 0.86
14 B 2729 2456 17.95 123.70 0.75 0.86
15 B 3408 3067 2.77 68.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10817.2 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 9734.4 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 HF/LANL2DZ
ABC
0.85945 0.10037 0.09398

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.802
S2 0.000 1.581 -0.184
S3 0.000 -1.581 -0.184
H4 0.875 -0.050 1.423
H5 -0.875 0.050 1.423
H6 1.138 1.384 -0.885
H7 -1.138 -1.384 -0.885

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.86351.86351.07441.07442.46072.4607
S21.86353.16302.45182.38611.35063.2530
S31.86353.16302.38612.45183.25301.3506
H41.07442.45182.38611.75232.73053.3403
H51.07442.38612.45181.75233.34032.7305
H62.46071.35063.25302.73053.34033.5837
H72.46073.25301.35063.34032.73053.5837

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 98.666 C1 S3 H7 98.666
S2 C1 S3 116.137 S2 C1 H4 110.230
S2 C1 H5 105.450 S3 C1 H4 105.450
S3 C1 H5 110.230 H4 C1 H5 109.277
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.740      
2 S 0.018      
3 S 0.018      
4 H 0.276      
5 H 0.276      
6 H 0.076      
7 H 0.076      


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 0.483 0.483
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.990 3.182 0.000
y 3.182 -40.698 0.000
z 0.000 0.000 -31.444
Traceless
 xyz
x 5.081 3.182 0.000
y 3.182 -9.481 0.000
z 0.000 0.000 4.400
Polar
3z2-r28.799
x2-y29.708
xy3.182
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.696 -0.125 0.000
y -0.125 7.520 0.000
z 0.000 0.000 4.508


<r2> (average value of r2) Å2
<r2> 69.321
(<r2>)1/2 8.326