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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B2PLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/3-21G
 hartrees
Energy at 0K-832.305091
Energy at 298.15K 
HF Energy-832.233881
Nuclear repulsion energy136.905797
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 B2PLYP/3-21G
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 237 237 9.22 25.24 0.64 0.78
2 A 279 279 29.86 19.40 0.70 0.82
3 A 586 586 5.78 21.28 0.17 0.29
4 A 886 886 5.25 20.30 0.66 0.80
5 A 1227 1227 1.41 26.91 0.73 0.84
6 A 1521 1521 3.06 20.17 0.75 0.86
7 A 2478 2478 7.65 134.05 0.19 0.32
8 A 3168 3168 4.37 83.06 0.11 0.20
9 B 240 240 57.06 6.83 0.75 0.86
10 B 685 685 44.23 11.65 0.75 0.86
11 B 724 724 0.08 6.53 0.75 0.86
12 B 1006 1006 28.38 11.15 0.75 0.86
13 B 1286 1286 24.16 1.87 0.75 0.86
14 B 2477 2477 28.57 97.99 0.75 0.86
15 B 3240 3240 0.00 59.91 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10019.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10019.8 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 B2PLYP/3-21G
ABC
0.82045 0.09831 0.09188

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.827
S2 0.000 1.599 -0.191
S3 0.000 -1.599 -0.191
H4 0.889 -0.051 1.448
H5 -0.889 0.051 1.448
H6 1.164 1.341 -0.869
H7 -1.164 -1.341 -0.869

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.89581.89581.08591.08592.45532.4553
S21.89583.19832.49052.42361.37143.2339
S31.89583.19832.42362.49053.23391.3714
H41.08592.49052.42361.78152.71693.3536
H51.08592.42362.49051.78153.35362.7169
H62.45531.37143.23392.71693.35363.5517
H72.45533.23391.37143.35362.71693.5517

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.115 C1 S3 H7 96.115
S2 C1 S3 115.023 S2 C1 H4 110.312
S2 C1 H5 105.502 S3 C1 H4 105.502
S3 C1 H5 110.312 H4 C1 H5 110.229
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.833      
2 S 0.052      
3 S 0.052      
4 H 0.272      
5 H 0.272      
6 H 0.093      
7 H 0.093      


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 0.436 0.436
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.394 2.809 0.000
y 2.809 -41.200 0.000
z 0.000 0.000 -33.207
Traceless
 xyz
x 4.810 2.809 0.000
y 2.809 -8.400 0.000
z 0.000 0.000 3.590
Polar
3z2-r27.179
x2-y28.807
xy2.809
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.000 0.006 0.000
y 0.006 7.752 0.000
z 0.000 0.000 4.798


<r2> (average value of r2) Å2
<r2> 122.935
(<r2>)1/2 11.088