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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: M06-2X/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at M06-2X/TZVP
 hartrees
Energy at 0K-836.850579
Energy at 298.15K 
HF Energy-836.850579
Nuclear repulsion energy141.499337
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 M06-2X/TZVP
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 230 217 6.65 12.38 0.65 0.78
2 A 301 285 15.41 9.05 0.59 0.74
3 A 655 620 3.57 12.28 0.14 0.24
4 A 929 879 5.88 5.51 0.32 0.49
5 A 1217 1151 0.63 14.22 0.61 0.75
6 A 1459 1380 1.29 16.06 0.72 0.84
7 A 2726 2579 0.07 142.47 0.11 0.20
8 A 3123 2955 6.05 106.73 0.08 0.14
9 B 256 242 46.92 2.27 0.75 0.86
10 B 731 691 1.81 0.61 0.75 0.86
11 B 775 734 27.35 11.76 0.75 0.86
12 B 1025 970 23.64 4.34 0.75 0.86
13 B 1280 1211 25.93 1.38 0.75 0.86
14 B 2725 2579 0.87 87.98 0.75 0.86
15 B 3182 3011 0.47 61.94 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10306.3 cm-1
Scaled (by 0.9462) Zero Point Vibrational Energy (zpe) 9751.8 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 M06-2X/TZVP
ABC
0.88572 0.10523 0.09848

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.782
S2 0.000 1.546 -0.180
S3 0.000 -1.546 -0.180
H4 0.879 -0.052 1.419
H5 -0.879 0.052 1.419
H6 1.117 1.277 -0.878
H7 -1.117 -1.277 -0.878

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82091.82091.08691.08692.37332.3733
S21.82093.09202.42592.35851.34433.1150
S31.82093.09202.35852.42593.11501.3443
H41.08692.42592.35851.76062.66433.2803
H51.08692.35852.42591.76063.28032.6643
H62.37331.34433.11502.66433.28033.3936
H72.37333.11501.34433.28032.66433.3936

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.975 C1 S3 H7 95.975
S2 C1 S3 116.214 S2 C1 H4 110.525
S2 C1 H5 105.615 S3 C1 H4 105.615
S3 C1 H5 110.525 H4 C1 H5 108.176
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.410      
2 S -0.080      
3 S -0.080      
4 H 0.186      
5 H 0.186      
6 H 0.099      
7 H 0.099      


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 0.397 0.397
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.840 1.792 0.000
y 1.792 -39.331 0.000
z 0.000 0.000 -32.604
Traceless
 xyz
x 4.128 1.792 0.000
y 1.792 -7.110 0.000
z 0.000 0.000 2.981
Polar
3z2-r25.963
x2-y27.492
xy1.792
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.637 0.105 0.000
y 0.105 8.693 0.000
z 0.000 0.000 5.917


<r2> (average value of r2) Å2
<r2> 115.671
(<r2>)1/2 10.755