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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B3LYP/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 B3LYP/cc-pVDZ
 hartrees
Energy at 0K-836.924333
Energy at 298.15K 
HF Energy-836.924333
Nuclear repulsion energy140.024068
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 B3LYP/cc-pVDZ
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 221 214 5.79 17.71 0.67 0.80
2 A 292 283 12.63 12.31 0.63 0.77
3 A 621 602 2.54 11.89 0.14 0.25
4 A 890 864 3.12 8.92 0.44 0.61
5 A 1184 1148 0.79 14.99 0.68 0.81
6 A 1425 1382 0.75 13.89 0.75 0.86
7 A 2654 2575 1.70 146.29 0.12 0.21
8 A 3074 2982 10.29 114.04 0.08 0.15
9 B 255 247 40.84 3.43 0.75 0.86
10 B 702 681 3.20 0.83 0.75 0.86
11 B 731 709 33.71 8.23 0.75 0.86
12 B 992 962 16.01 5.24 0.75 0.86
13 B 1238 1201 29.98 1.56 0.75 0.86
14 B 2654 2574 3.97 89.16 0.75 0.86
15 B 3136 3042 1.54 75.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10034.6 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 9733.5 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 B3LYP/cc-pVDZ
ABC
0.88273 0.10247 0.09611

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.778
S2 0.000 1.566 -0.179
S3 0.000 -1.566 -0.179
H4 0.888 -0.059 1.424
H5 -0.888 0.059 1.424
H6 1.129 1.308 -0.889
H7 -1.129 -1.308 -0.889

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83591.83591.09941.09942.40162.4016
S21.83593.13282.44962.37301.35853.1692
S31.83593.13282.37302.44963.16921.3585
H41.09942.44962.37301.77942.69813.3137
H51.09942.37302.44961.77943.31372.6981
H62.40161.35853.16922.69813.31373.4566
H72.40163.16921.35853.31372.69813.4566

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.350 C1 S3 H7 96.350
S2 C1 S3 117.125 S2 C1 H4 110.616
S2 C1 H5 105.109 S3 C1 H4 105.109
S3 C1 H5 110.616 H4 C1 H5 108.052
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.198      
2 S -0.070      
3 S -0.070      
4 H 0.090      
5 H 0.090      
6 H 0.079      
7 H 0.079      


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 0.358 0.358
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.468 1.659 0.000
y 1.659 -38.121 0.000
z 0.000 0.000 -32.196
Traceless
 xyz
x 3.691 1.659 0.000
y 1.659 -6.289 0.000
z 0.000 0.000 2.598
Polar
3z2-r25.197
x2-y26.653
xy1.659
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.401 0.123 0.000
y 0.123 8.277 0.000
z 0.000 0.000 5.496


<r2> (average value of r2) Å2
<r2> 117.563
(<r2>)1/2 10.843