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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: PBEPBE/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-836.487945
Energy at 298.15K 
HF Energy-836.487945
Nuclear repulsion energy139.873644
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/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 213 211 5.14 17.95 0.66 0.80
2 A 291 289 12.93 13.08 0.63 0.78
3 A 611 607 2.24 9.69 0.16 0.28
4 A 861 856 3.31 9.61 0.39 0.56
5 A 1142 1135 0.91 15.83 0.66 0.79
6 A 1372 1364 1.15 14.35 0.75 0.85
7 A 2597 2582 1.31 146.14 0.11 0.19
8 A 3006 2989 8.88 119.60 0.07 0.13
9 B 257 256 43.90 3.47 0.75 0.86
10 B 679 675 2.95 1.46 0.75 0.86
11 B 716 712 39.82 5.38 0.75 0.86
12 B 955 950 15.24 5.61 0.75 0.86
13 B 1190 1183 28.55 3.08 0.75 0.86
14 B 2596 2581 2.99 87.42 0.75 0.86
15 B 3071 3053 1.38 77.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9778.0 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 9721.3 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/cc-pVDZ
ABC
0.88029 0.10241 0.09608

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.777
S2 0.000 1.567 -0.179
S3 0.000 -1.567 -0.179
H4 0.893 -0.063 1.428
H5 -0.893 0.063 1.428
H6 1.135 1.296 -0.893
H7 -1.135 -1.296 -0.893

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83551.83551.10761.10762.39892.3989
S21.83553.13402.45772.37561.36783.1613
S31.83553.13402.37562.45773.16131.3678
H41.10762.45772.37561.79132.70073.3198
H51.10762.37562.45771.79133.31982.7007
H62.39891.36783.16132.70073.31983.4454
H72.39893.16131.36783.31982.70073.4454

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.884 C1 S3 H7 95.884
S2 C1 S3 117.234 S2 C1 H4 110.805
S2 C1 H5 104.927 S3 C1 H4 104.927
S3 C1 H5 110.805 H4 C1 H5 107.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.242      
2 S -0.082      
3 S -0.082      
4 H 0.107      
5 H 0.107      
6 H 0.096      
7 H 0.096      


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 0.336 0.336
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.423 1.630 0.000
y 1.630 -38.049 0.000
z 0.000 0.000 -32.163
Traceless
 xyz
x 3.684 1.630 0.000
y 1.630 -6.256 0.000
z 0.000 0.000 2.573
Polar
3z2-r25.146
x2-y26.627
xy1.630
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.492 0.126 0.000
y 0.126 8.551 0.000
z 0.000 0.000 5.583


<r2> (average value of r2) Å2
<r2> 117.597
(<r2>)1/2 10.844