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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: HF/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/aug-cc-pVQZ
 hartrees
Energy at 0K-835.312279
Energy at 298.15K 
HF Energy-835.312279
Nuclear repulsion energy142.368392
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 HF/aug-cc-pVQZ
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 241 219 5.58 3.40 0.38 0.56
2 A 309 281 10.19 1.48 0.18 0.31
3 A 687 624 4.01 22.03 0.14 0.25
4 A 980 890 3.58 7.15 0.10 0.19
5 A 1313 1192 0.39 3.05 0.75 0.86
6 A 1577 1433 1.13 9.01 0.58 0.73
7 A 2856 2594 0.05 137.72 0.08 0.15
8 A 3225 2930 9.05 96.09 0.08 0.14
9 B 255 232 33.89 0.10 0.75 0.86
10 B 767 697 0.44 0.40 0.75 0.86
11 B 833 757 20.90 8.96 0.75 0.86
12 B 1101 1000 21.49 0.84 0.75 0.86
13 B 1384 1257 26.26 0.62 0.75 0.86
14 B 2855 2594 0.19 56.83 0.75 0.86
15 B 3280 2980 1.57 53.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10831.1 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 9840.1 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 HF/aug-cc-pVQZ
ABC
0.90222 0.10622 0.09942

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.774
S2 0.000 1.538 -0.178
S3 0.000 -1.538 -0.178
H4 0.871 -0.049 1.407
H5 -0.871 0.049 1.407
H6 1.101 1.316 -0.885
H7 -1.101 -1.316 -0.885

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.80861.80861.07781.07782.38642.3864
S21.80863.07582.40592.34271.32713.1394
S31.80863.07582.34272.40593.13941.3271
H41.07782.40592.34271.74422.67753.2782
H51.07782.34272.40591.74423.27822.6775
H62.38641.32713.13942.67753.27823.4315
H72.38643.13941.32713.27822.67753.4315

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 97.933 C1 S3 H7 97.933
S2 C1 S3 116.496 S2 C1 H4 110.349
S2 C1 H5 105.710 S3 C1 H4 105.710
S3 C1 H5 110.349 H4 C1 H5 108.018
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.549      
2 S -0.130      
3 S -0.130      
4 H 0.326      
5 H 0.326      
6 H 0.079      
7 H 0.079      


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 0.506 0.506
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.132 1.630 0.000
y 1.630 -39.508 0.000
z 0.000 0.000 -32.777
Traceless
 xyz
x 4.011 1.630 0.000
y 1.630 -7.054 0.000
z 0.000 0.000 3.044
Polar
3z2-r26.087
x2-y27.377
xy1.630
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.000 0.329 0.000
y 0.329 9.937 0.000
z 0.000 0.000 7.457


<r2> (average value of r2) Å2
<r2> 114.966
(<r2>)1/2 10.722