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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: BLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at BLYP/cc-pVTZ
 hartrees
Energy at 0K-836.905949
Energy at 298.15K 
HF Energy-836.905949
Nuclear repulsion energy139.202969
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 BLYP/cc-pVTZ
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 201 200 5.55 11.68 0.62 0.77
2 A 275 274 8.03 7.68 0.51 0.68
3 A 588 586 1.96 13.27 0.12 0.21
4 A 865 862 3.00 7.05 0.22 0.36
5 A 1164 1161 0.73 8.04 0.66 0.79
6 A 1412 1408 0.83 11.76 0.72 0.84
7 A 2579 2571 1.03 143.65 0.11 0.19
8 A 3007 2998 8.48 109.70 0.07 0.13
9 B 239 239 35.13 2.23 0.75 0.86
10 B 658 656 43.07 3.14 0.75 0.86
11 B 688 685 3.35 3.33 0.75 0.86
12 B 972 969 13.81 3.35 0.75 0.86
13 B 1215 1211 29.82 0.71 0.75 0.86
14 B 2578 2571 3.82 72.73 0.75 0.86
15 B 3059 3050 1.91 62.89 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9749.1 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 9719.8 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 BLYP/cc-pVTZ
ABC
0.88426 0.10056 0.09455

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.778
S2 0.000 1.580 -0.181
S3 0.000 -1.580 -0.181
H4 0.885 -0.057 1.416
H5 -0.885 0.057 1.416
H6 1.153 1.349 -0.856
H7 -1.153 -1.349 -0.856

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.84861.84861.09261.09262.41252.4125
S21.84863.16072.45242.37801.35563.2198
S31.84863.16072.37802.45243.21981.3556
H41.09262.45242.37801.77412.68543.3144
H51.09262.37802.45241.77413.31442.6854
H62.41251.35563.21982.68543.31443.5491
H72.41253.21981.35563.31442.68543.5491

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.470 C1 S3 H7 96.470
S2 C1 S3 117.490 S2 C1 H4 110.329
S2 C1 H5 104.973 S3 C1 H4 104.973
S3 C1 H5 110.329 H4 C1 H5 108.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.202      
2 S -0.108      
3 S -0.108      
4 H 0.124      
5 H 0.124      
6 H 0.085      
7 H 0.085      


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 0.490 0.490
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.898 1.504 0.000
y 1.504 -38.621 0.000
z 0.000 0.000 -33.057
Traceless
 xyz
x 3.941 1.504 0.000
y 1.504 -6.144 0.000
z 0.000 0.000 2.202
Polar
3z2-r24.405
x2-y26.723
xy1.504
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.411 0.230 0.000
y 0.230 10.079 0.000
z 0.000 0.000 6.579


<r2> (average value of r2) Å2
<r2> 119.513
(<r2>)1/2 10.932