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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B1B95/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-836.995374
Energy at 298.15K 
HF Energy-836.995374
Nuclear repulsion energy142.728365
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/Def2TZVPP
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 209 209 3.74 7.90 0.63 0.77
2 A 296 296 10.04 5.25 0.55 0.71
3 A 649 649 2.68 10.57 0.14 0.25
4 A 906 906 3.71 5.94 0.18 0.31
5 A 1203 1203 0.53 7.01 0.58 0.73
6 A 1451 1451 1.62 12.22 0.73 0.84
7 A 2720 2720 0.07 132.21 0.08 0.15
8 A 3101 3101 7.22 112.88 0.06 0.12
9 B 245 245 36.58 0.94 0.75 0.86
10 B 706 706 0.89 0.56 0.75 0.86
11 B 776 776 23.83 6.38 0.75 0.86
12 B 1004 1004 17.01 2.25 0.75 0.86
13 B 1256 1256 21.51 0.47 0.75 0.86
14 B 2719 2719 0.32 68.96 0.75 0.86
15 B 3159 3159 1.59 62.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10199.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10199.6 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/Def2TZVPP
ABC
0.90172 0.10721 0.10029

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.772
S2 0.000 1.532 -0.177
S3 0.000 -1.532 -0.177
H4 0.876 -0.056 1.412
H5 -0.876 0.056 1.412
H6 1.097 1.260 -0.893
H7 -1.097 -1.260 -0.893

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.80221.80221.08591.08592.35842.3584
S21.80223.06382.41082.33911.33773.0834
S31.80223.06382.33912.41083.08341.3377
H41.08592.41082.33911.75462.66303.2638
H51.08592.33912.41081.75463.26382.6630
H62.35841.33773.08342.66303.26383.3402
H72.35843.08341.33773.26382.66303.3402

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.246 C1 S3 H7 96.246
S2 C1 S3 116.431 S2 C1 H4 110.725
S2 C1 H5 105.479 S3 C1 H4 105.479
S3 C1 H5 110.725 H4 C1 H5 107.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.190      
2 S -0.163      
3 S -0.163      
4 H 0.147      
5 H 0.147      
6 H 0.111      
7 H 0.111      


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 -31.646 1.309 0.000
y 1.309 -38.301 0.000
z 0.000 0.000 -32.123
Traceless
 xyz
x 3.566 1.309 0.000
y 1.309 -6.417 0.000
z 0.000 0.000 2.850
Polar
3z2-r25.701
x2-y26.656
xy1.309
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.136 0.153 0.000
y 0.153 9.336 0.000
z 0.000 0.000 6.525


<r2> (average value of r2) Å2
<r2> 113.629
(<r2>)1/2 10.660