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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: BLYP/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 BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-836.826374
Energy at 298.15K 
HF Energy-836.826374
Nuclear repulsion energy139.265145
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 BLYP/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 206 204 5.25 8.71 0.52 0.68
2 A 281 279 10.97 4.56 0.50 0.67
3 A 592 589 2.87 14.50 0.16 0.27
4 A 868 863 2.88 8.15 0.29 0.44
5 A 1158 1152 0.95 13.27 0.67 0.81
6 A 1406 1398 0.27 14.92 0.75 0.86
7 A 2584 2570 1.31 109.53 0.13 0.23
8 A 3007 2991 7.93 86.74 0.10 0.18
9 B 241 240 36.95 0.37 0.75 0.86
10 B 671 667 35.51 1.61 0.75 0.86
11 B 689 685 10.19 5.58 0.75 0.86
12 B 971 966 16.41 5.85 0.75 0.86
13 B 1211 1204 36.16 2.28 0.75 0.86
14 B 2583 2569 3.34 72.81 0.75 0.86
15 B 3065 3048 1.53 60.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9765.9 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 9712.2 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 BLYP/6-31G(2df,p)
ABC
0.88068 0.10091 0.09476

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/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 1.578 -0.180
S3 0.000 -1.578 -0.180
H4 0.888 -0.059 1.422
H5 -0.888 0.059 1.422
H6 1.138 1.332 -0.878
H7 -1.138 -1.332 -0.878

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.84751.84751.09741.09742.41222.4122
S21.84753.15642.45682.38001.35743.2014
S31.84753.15642.38002.45683.20141.3574
H41.09742.45682.38001.78042.69953.3190
H51.09742.38002.45681.78043.31902.6995
H62.41221.35743.20142.69953.31903.5029
H72.41223.20141.35743.31902.69953.5029

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.445 C1 S3 H7 96.445
S2 C1 S3 117.355 S2 C1 H4 110.474
S2 C1 H5 104.963 S3 C1 H4 104.963
S3 C1 H5 110.474 H4 C1 H5 108.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.148      
2 S -0.238      
3 S -0.238      
4 H 0.151      
5 H 0.151      
6 H 0.161      
7 H 0.161      


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 0.480 0.480
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.476 1.553 0.000
y 1.553 -38.550 0.000
z 0.000 0.000 -32.392
Traceless
 xyz
x 3.995 1.553 0.000
y 1.553 -6.616 0.000
z 0.000 0.000 2.621
Polar
3z2-r25.242
x2-y27.074
xy1.553
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.922 0.226 0.000
y 0.226 9.308 0.000
z 0.000 0.000 6.150


<r2> (average value of r2) Å2
<r2> 119.025
(<r2>)1/2 10.910