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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-832.408994
Energy at 298.15K 
HF Energy-832.408994
Nuclear repulsion energy138.000227
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 HSEh1PBE/3-21G
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 235 226 14.30 25.99 0.66 0.80
2 A 283 272 29.00 16.36 0.67 0.80
3 A 606 583 6.09 19.86 0.19 0.31
4 A 889 856 6.59 20.18 0.65 0.79
5 A 1227 1182 1.37 27.07 0.72 0.84
6 A 1501 1446 6.40 19.60 0.75 0.86
7 A 2490 2399 5.99 134.19 0.19 0.31
8 A 3157 3041 3.06 86.01 0.10 0.19
9 B 238 230 64.64 6.70 0.75 0.86
10 B 706 680 49.25 6.86 0.75 0.86
11 B 727 700 1.44 8.84 0.75 0.86
12 B 1006 969 30.20 11.04 0.75 0.86
13 B 1280 1233 18.37 2.58 0.75 0.86
14 B 2490 2398 23.90 96.72 0.75 0.86
15 B 3232 3113 0.25 60.88 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10031.7 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 9663.5 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 HSEh1PBE/3-21G
ABC
0.82791 0.10034 0.09376

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.820
S2 0.000 1.582 -0.190
S3 0.000 -1.582 -0.190
H4 0.889 -0.052 1.446
H5 -0.889 0.052 1.446
H6 1.168 1.324 -0.863
H7 -1.168 -1.324 -0.863

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.87721.87721.08901.08902.43902.4390
S21.87723.16492.47792.41031.37243.2039
S31.87723.16492.41032.47793.20391.3724
H41.08902.47792.41031.78212.70233.3439
H51.08902.41032.47791.78213.34392.7023
H62.43901.37243.20392.70233.34393.5313
H72.43903.20391.37243.34392.70233.5313

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.033 C1 S3 H7 96.033
S2 C1 S3 114.907 S2 C1 H4 110.473
S2 C1 H5 105.596 S3 C1 H4 105.596
S3 C1 H5 110.473 H4 C1 H5 109.808
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.933      
2 S 0.049      
3 S 0.049      
4 H 0.303      
5 H 0.303      
6 H 0.114      
7 H 0.114      


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 0.440 0.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.960 2.964 0.000
y 2.964 -41.113 0.000
z 0.000 0.000 -32.878
Traceless
 xyz
x 5.035 2.964 0.000
y 2.964 -8.694 0.000
z 0.000 0.000 3.658
Polar
3z2-r27.317
x2-y29.153
xy2.964
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.012 -0.006 0.000
y -0.006 7.680 0.000
z 0.000 0.000 4.787


<r2> (average value of r2) Å2
<r2> 120.872
(<r2>)1/2 10.994