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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: mPW1PW91/daug-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 mPW1PW91/daug-cc-pVTZ
 hartrees
Energy at 0K-836.971119
Energy at 298.15K 
HF Energy-836.971119
Nuclear repulsion energy141.975853
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 mPW1PW91/daug-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 208 208 4.45 4.56 0.38 0.55
2 A 292 292 8.19 1.12 0.18 0.30
3 A 647 647 2.61 13.85 0.14 0.24
4 A 904 904 3.69 9.18 0.09 0.16
5 A 1205 1205 0.43 3.38 0.73 0.84
6 A 1449 1449 1.77 8.87 0.63 0.77
7 A 2712 2712 0.00 146.82 0.06 0.12
8 A 3100 3100 4.88 107.19 0.06 0.12
9 B 238 238 34.07 0.16 0.75 0.86
10 B 709 709 1.35 0.60 0.75 0.86
11 B 768 768 27.28 4.65 0.75 0.86
12 B 1006 1006 15.56 1.04 0.75 0.86
13 B 1257 1257 23.14 0.06 0.75 0.86
14 B 2712 2712 0.03 52.07 0.75 0.86
15 B 3157 3157 1.73 56.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10182.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10182.3 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 mPW1PW91/daug-cc-pVTZ
ABC
0.89723 0.10580 0.09911

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/daug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.773
S2 0.000 1.541 -0.178
S3 0.000 -1.541 -0.178
H4 0.878 -0.054 1.412
H5 -0.878 0.054 1.412
H6 1.118 1.289 -0.879
H7 -1.118 -1.289 -0.879

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81141.81141.08701.08702.37502.3750
S21.81143.08272.41762.34771.34293.1229
S31.81143.08272.34772.41763.12291.3429
H41.08702.41762.34771.75922.66633.2796
H51.08702.34772.41761.75923.27962.6663
H62.37501.34293.12292.66633.27963.4127
H72.37503.12291.34293.27962.66633.4127

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.562 C1 S3 H7 96.562
S2 C1 S3 116.621 S2 C1 H4 110.545
S2 C1 H5 105.447 S3 C1 H4 105.447
S3 C1 H5 110.545 H4 C1 H5 108.034
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.176      
2 S -0.782      
3 S -0.782      
4 H 0.376      
5 H 0.376      
6 H 0.318      
7 H 0.318      


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 -31.754 1.368 0.000
y 1.368 -38.683 0.000
z 0.000 0.000 -32.528
Traceless
 xyz
x 3.852 1.368 0.000
y 1.368 -6.542 0.000
z 0.000 0.000 2.690
Polar
3z2-r25.380
x2-y26.930
xy1.368
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.332 0.381 0.000
y 0.381 10.632 0.000
z 0.000 0.000 7.801


<r2> (average value of r2) Å2
<r2> 114.967
(<r2>)1/2 10.722