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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B2PLYP/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 B2PLYP/6-31G(2df,p)
 hartrees
Energy at 0K-836.559798
Energy at 298.15K 
HF Energy-836.395461
Nuclear repulsion energy141.511452
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/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 226 216 4.20 6.32 0.52 0.69
2 A 300 287 13.10 3.55 0.55 0.71
3 A 641 613 3.55 14.65 0.16 0.27
4 A 912 871 3.95 7.02 0.33 0.50
5 A 1211 1157 0.62 12.05 0.68 0.81
6 A 1468 1402 0.65 13.69 0.75 0.86
7 A 2728 2605 0.16 102.01 0.12 0.22
8 A 3114 2974 5.71 82.23 0.10 0.18
9 B 252 240 38.31 0.21 0.75 0.86
10 B 718 686 1.39 0.89 0.75 0.86
11 B 766 731 26.44 7.42 0.75 0.86
12 B 1014 969 18.99 4.80 0.75 0.86
13 B 1269 1211 28.99 1.22 0.75 0.86
14 B 2728 2605 0.28 71.60 0.75 0.86
15 B 3176 3033 0.77 57.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10260.8 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 9799.1 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/6-31G(2df,p)
ABC
0.88856 0.10517 0.09837

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.780
S2 0.000 1.547 -0.179
S3 0.000 -1.547 -0.179
H4 0.880 -0.055 1.419
H5 -0.880 0.055 1.419
H6 1.100 1.277 -0.897
H7 -1.100 -1.277 -0.897

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82011.82011.08921.08922.37792.3779
S21.82013.09372.42812.35671.34103.1144
S31.82013.09372.35672.42813.11441.3410
H41.08922.42812.35671.76422.68133.2833
H51.08922.35672.42811.76423.28332.6813
H62.37791.34103.11442.68133.28333.3705
H72.37793.11441.34103.28332.68133.3705

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.390 C1 S3 H7 96.390
S2 C1 S3 116.398 S2 C1 H4 110.623
S2 C1 H5 105.431 S3 C1 H4 105.431
S3 C1 H5 110.623 H4 C1 H5 108.159
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.239      
2 S -0.235      
3 S -0.235      
4 H 0.175      
5 H 0.175      
6 H 0.179      
7 H 0.179      


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 0.435 0.435
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.733 1.501 0.000
y 1.501 -38.897 0.000
z 0.000 0.000 -32.231
Traceless
 xyz
x 3.831 1.501 0.000
y 1.501 -6.916 0.000
z 0.000 0.000 3.085
Polar
3z2-r26.169
x2-y27.164
xy1.501
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.729 0.185 0.000
y 0.185 8.647 0.000
z 0.000 0.000 6.025


<r2> (average value of r2) Å2
<r2> 115.532
(<r2>)1/2 10.749