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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: HF/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-835.217739
Energy at 298.15K 
HF Energy-835.217739
Nuclear repulsion energy141.927364
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/6-31+G**
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 256 232 7.27 5.01 0.53 0.69
2 A 316 286 18.27 1.49 0.28 0.43
3 A 695 629 4.96 24.82 0.17 0.30
4 A 989 895 5.34 6.43 0.30 0.46
5 A 1329 1201 0.68 16.91 0.67 0.80
6 A 1579 1428 1.43 12.73 0.70 0.82
7 A 2898 2620 1.58 139.56 0.16 0.27
8 A 3254 2942 10.81 90.74 0.13 0.23
9 B 264 239 44.65 0.05 0.75 0.86
10 B 780 705 1.15 1.46 0.75 0.86
11 B 841 760 25.47 16.87 0.75 0.86
12 B 1115 1008 37.74 3.47 0.75 0.86
13 B 1402 1268 29.42 0.15 0.75 0.86
14 B 2897 2620 3.70 94.56 0.75 0.86
15 B 3315 2997 0.94 67.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10964.8 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 9914.4 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/6-31+G**
ABC
0.89995 0.10536 0.09869

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.774
S2 0.000 1.544 -0.179
S3 0.000 -1.544 -0.179
H4 0.871 -0.049 1.411
H5 -0.871 0.049 1.411
H6 1.110 1.325 -0.873
H7 -1.110 -1.325 -0.873

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81451.81451.08031.08032.38752.3875
S21.81453.08812.41322.35011.32713.1536
S31.81453.08812.35012.41323.15361.3271
H41.08032.41322.35011.74532.67573.2817
H51.08032.35012.41321.74533.28172.6757
H62.38751.32713.15362.67573.28173.4572
H72.38753.15361.32713.28172.67573.4572

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 97.714 C1 S3 H7 97.714
S2 C1 S3 116.628 S2 C1 H4 110.365
S2 C1 H5 105.738 S3 C1 H4 105.738
S3 C1 H5 110.365 H4 C1 H5 107.762
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.362      
2 S -0.067      
3 S -0.067      
4 H 0.192      
5 H 0.192      
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 0.473 0.473
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.253 2.186 0.000
y 2.186 -40.288 0.000
z 0.000 0.000 -33.080
Traceless
 xyz
x 4.431 2.186 0.000
y 2.186 -7.621 0.000
z 0.000 0.000 3.190
Polar
3z2-r26.381
x2-y28.035
xy2.186
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.929 0.397 0.000
y 0.397 8.429 0.000
z 0.000 0.000 6.331


<r2> (average value of r2) Å2
<r2> 115.903
(<r2>)1/2 10.766