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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: HSEh1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HSEh1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-836.574362
Energy at 298.15K 
HF Energy-836.574362
Nuclear repulsion energy142.056518
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 HSEh1PBE/6-31G(2df,p)
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 225 215 3.88 6.20 0.52 0.69
2 A 303 290 13.77 3.37 0.56 0.72
3 A 650 622 3.34 13.09 0.16 0.28
4 A 908 869 4.12 7.21 0.31 0.47
5 A 1199 1148 0.53 12.26 0.67 0.80
6 A 1445 1384 1.32 13.58 0.75 0.86
7 A 2720 2605 0.17 104.04 0.11 0.21
8 A 3100 2969 5.44 86.74 0.09 0.17
9 B 255 244 39.69 0.18 0.75 0.86
10 B 710 680 1.14 1.27 0.75 0.86
11 B 778 746 26.84 6.09 0.75 0.86
12 B 1005 963 19.34 4.73 0.75 0.86
13 B 1254 1201 26.43 1.67 0.75 0.86
14 B 2719 2604 0.29 73.50 0.75 0.86
15 B 3163 3029 0.91 60.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10216.4 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9784.3 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 HSEh1PBE/6-31G(2df,p)
ABC
0.89481 0.10616 0.09931

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.775
S2 0.000 1.540 -0.177
S3 0.000 -1.540 -0.177
H4 0.881 -0.057 1.417
H5 -0.881 0.057 1.417
H6 1.099 1.268 -0.902
H7 -1.099 -1.268 -0.902

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81011.81011.09161.09162.37202.3720
S21.81013.07902.42212.34901.34403.1008
S31.81013.07902.34902.42213.10081.3440
H41.09162.42212.34901.76482.67983.2810
H51.09162.34902.42211.76483.28102.6798
H62.37201.34403.10082.67983.28103.3559
H72.37203.10081.34403.28102.67983.3559

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.413 C1 S3 H7 96.413
S2 C1 S3 116.531 S2 C1 H4 110.719
S2 C1 H5 105.400 S3 C1 H4 105.400
S3 C1 H5 110.719 H4 C1 H5 107.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.283      
2 S -0.242      
3 S -0.242      
4 H 0.193      
5 H 0.193      
6 H 0.191      
7 H 0.191      


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 0.444 0.444
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.490 1.506 0.000
y 1.506 -38.647 0.000
z 0.000 0.000 -31.940
Traceless
 xyz
x 3.803 1.506 0.000
y 1.506 -6.932 0.000
z 0.000 0.000 3.129
Polar
3z2-r26.257
x2-y27.156
xy1.506
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.778 0.192 0.000
y 0.192 8.701 0.000
z 0.000 0.000 6.079


<r2> (average value of r2) Å2
<r2> 114.537
(<r2>)1/2 10.702