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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-836.442437
Energy at 298.15K 
HF Energy-836.442437
Nuclear repulsion energy140.018697
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 PBEPBE/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 225 221 5.99 12.38 0.57 0.73
2 A 297 293 19.98 8.17 0.64 0.78
3 A 617 608 3.23 13.18 0.22 0.36
4 A 882 869 4.51 11.59 0.43 0.60
5 A 1188 1171 1.84 23.90 0.66 0.79
6 A 1433 1412 2.85 18.07 0.74 0.85
7 A 2616 2579 5.45 118.52 0.16 0.27
8 A 3030 2986 8.21 97.14 0.11 0.20
9 B 259 255 49.48 1.23 0.75 0.86
10 B 696 686 9.05 0.72 0.75 0.86
11 B 718 708 37.76 8.38 0.75 0.86
12 B 987 973 27.40 8.44 0.75 0.86
13 B 1244 1227 28.91 6.13 0.75 0.86
14 B 2616 2578 15.16 96.61 0.75 0.86
15 B 3088 3044 1.27 70.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9947.4 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 9805.1 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 PBEPBE/6-31G*
ABC
0.88426 0.10242 0.09611

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.776
S2 0.000 1.567 -0.179
S3 0.000 -1.567 -0.179
H4 0.887 -0.061 1.426
H5 -0.887 0.061 1.426
H6 1.136 1.308 -0.882
H7 -1.136 -1.308 -0.882

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83501.83501.10101.10102.39762.3976
S21.83503.13342.45202.37271.36013.1697
S31.83503.13342.37272.45203.16971.3601
H41.10102.45202.37271.77762.69473.3120
H51.10102.37272.45201.77763.31202.6947
H62.39761.36013.16972.69473.31203.4645
H72.39763.16971.36013.31202.69473.4645

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.113 C1 S3 H7 96.113
S2 C1 S3 117.252 S2 C1 H4 110.773
S2 C1 H5 105.063 S3 C1 H4 105.063
S3 C1 H5 110.773 H4 C1 H5 107.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.594      
2 S -0.061      
3 S -0.061      
4 H 0.232      
5 H 0.232      
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 0.425 0.425
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.535 2.043 0.000
y 2.043 -39.144 0.000
z 0.000 0.000 -32.346
Traceless
 xyz
x 4.210 2.043 0.000
y 2.043 -7.204 0.000
z 0.000 0.000 2.994
Polar
3z2-r25.988
x2-y27.609
xy2.043
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.361 0.129 0.000
y 0.129 8.350 0.000
z 0.000 0.000 5.466


<r2> (average value of r2) Å2
<r2> 117.837
(<r2>)1/2 10.855