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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B1B95/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 B1B95/cc-pVTZ
 hartrees
Energy at 0K-837.003049
Energy at 298.15K 
HF Energy-837.003049
Nuclear repulsion energy142.383434
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 B1B95/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 208 199 4.00 8.51 0.65 0.78
2 A 294 281 10.25 6.14 0.58 0.73
3 A 648 620 2.81 12.32 0.12 0.22
4 A 901 862 3.70 5.96 0.24 0.39
5 A 1201 1149 0.46 7.31 0.65 0.79
6 A 1451 1389 1.49 10.43 0.73 0.85
7 A 2715 2599 0.12 131.86 0.09 0.16
8 A 3104 2971 7.04 109.13 0.07 0.12
9 B 243 232 36.85 1.29 0.75 0.86
10 B 706 676 0.93 0.79 0.75 0.86
11 B 772 739 26.24 5.80 0.75 0.86
12 B 1001 958 15.98 2.44 0.75 0.86
13 B 1254 1200 23.22 0.48 0.75 0.86
14 B 2715 2598 0.46 71.34 0.75 0.86
15 B 3161 3026 1.45 61.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10186.1 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 9749.1 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 B1B95/cc-pVTZ
ABC
0.89672 0.10668 0.09979

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.775
S2 0.000 1.536 -0.178
S3 0.000 -1.536 -0.178
H4 0.877 -0.054 1.413
H5 -0.877 0.054 1.413
H6 1.102 1.264 -0.890
H7 -1.102 -1.264 -0.890

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.80761.80761.08531.08532.36362.3636
S21.80763.07142.41422.34381.34043.0917
S31.80763.07142.34382.41423.09171.3404
H41.08532.41422.34381.75642.66333.2685
H51.08532.34382.41421.75643.26852.6633
H62.36361.34043.09172.66333.26853.3538
H72.36363.09171.34043.26852.66333.3538

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.187 C1 S3 H7 96.187
S2 C1 S3 116.334 S2 C1 H4 110.642
S2 C1 H5 105.500 S3 C1 H4 105.500
S3 C1 H5 110.642 H4 C1 H5 108.039
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.230      
2 S -0.157      
3 S -0.157      
4 H 0.149      
5 H 0.149      
6 H 0.122      
7 H 0.122      


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 0.451 0.451
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.617 1.372 0.000
y 1.372 -38.349 0.000
z 0.000 0.000 -32.137
Traceless
 xyz
x 3.626 1.372 0.000
y 1.372 -6.472 0.000
z 0.000 0.000 2.846
Polar
3z2-r25.693
x2-y26.732
xy1.372
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.092 0.155 0.000
y 0.155 9.274 0.000
z 0.000 0.000 6.416


<r2> (average value of r2) Å2
<r2> 114.090
(<r2>)1/2 10.681