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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: HF/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 HF/Def2TZVPP
 hartrees
Energy at 0K-835.290566
Energy at 298.15K 
HF Energy-835.290566
Nuclear repulsion energy142.435982
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/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 242 220 6.46 7.50 0.64 0.78
2 A 310 281 11.98 4.98 0.52 0.68
3 A 687 622 4.14 17.92 0.14 0.24
4 A 982 890 3.68 4.83 0.23 0.38
5 A 1313 1190 0.44 5.94 0.66 0.80
6 A 1579 1431 1.01 11.93 0.69 0.81
7 A 2858 2591 0.33 136.07 0.10 0.18
8 A 3227 2925 11.61 102.65 0.08 0.15
9 B 257 233 36.53 1.00 0.75 0.86
10 B 768 696 0.36 0.44 0.75 0.86
11 B 833 755 20.52 11.60 0.75 0.86
12 B 1102 999 21.86 1.78 0.75 0.86
13 B 1384 1254 25.24 0.13 0.75 0.86
14 B 2858 2590 0.75 74.78 0.75 0.86
15 B 3282 2975 2.08 61.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10840.8 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 9826.1 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/Def2TZVPP
ABC
0.90294 0.10634 0.09952

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.774
S2 0.000 1.537 -0.178
S3 0.000 -1.537 -0.178
H4 0.871 -0.049 1.408
H5 -0.871 0.049 1.408
H6 1.097 1.310 -0.887
H7 -1.097 -1.310 -0.887

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.80771.80771.07841.07842.38322.3832
S21.80773.07452.40602.34211.32653.1331
S31.80773.07452.34212.40603.13311.3265
H41.07842.40602.34211.74452.67723.2759
H51.07842.34212.40601.74453.27592.6772
H62.38321.32653.13312.67723.27593.4182
H72.38323.13311.32653.27592.67723.4182

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 97.817 C1 S3 H7 97.817
S2 C1 S3 116.506 S2 C1 H4 110.384
S2 C1 H5 105.696 S3 C1 H4 105.696
S3 C1 H5 110.384 H4 C1 H5 107.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.106      
2 S -0.105      
3 S -0.105      
4 H 0.095      
5 H 0.095      
6 H 0.063      
7 H 0.063      


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 0.481 0.481
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.986 1.692 0.000
y 1.692 -39.344 0.000
z 0.000 0.000 -32.566
Traceless
 xyz
x 3.969 1.692 0.000
y 1.692 -7.068 0.000
z 0.000 0.000 3.099
Polar
3z2-r26.198
x2-y27.358
xy1.692
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.957 0.144 0.000
y 0.144 8.835 0.000
z 0.000 0.000 6.314


<r2> (average value of r2) Å2
<r2> 114.750
(<r2>)1/2 10.712