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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: TPSSh/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 TPSSh/3-21G*
 hartrees
Energy at 0K-832.958882
Energy at 298.15K 
HF Energy-832.958882
Nuclear repulsion energy140.537282
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 TPSSh/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 234 226 5.87 15.46 0.60 0.75
2 A 298 288 21.32 11.46 0.68 0.81
3 A 617 596 3.46 16.61 0.19 0.32
4 A 921 890 5.22 13.04 0.57 0.72
5 A 1244 1201 1.68 26.48 0.70 0.82
6 A 1516 1464 4.66 20.96 0.74 0.85
7 A 2691 2598 4.11 111.03 0.17 0.29
8 A 3084 2978 8.62 91.94 0.11 0.20
9 B 262 253 50.15 2.49 0.75 0.86
10 B 701 677 39.64 5.60 0.75 0.86
11 B 732 707 0.91 5.84 0.75 0.86
12 B 1033 998 27.50 8.19 0.75 0.86
13 B 1294 1250 16.92 4.73 0.75 0.86
14 B 2690 2597 9.54 85.93 0.75 0.86
15 B 3139 3031 0.80 68.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10227.2 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 9876.4 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 TPSSh/3-21G*
ABC
0.86617 0.10402 0.09720

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.794
S2 0.000 1.555 -0.184
S3 0.000 -1.555 -0.184
H4 0.885 -0.052 1.434
H5 -0.885 0.052 1.434
H6 1.119 1.278 -0.879
H7 -1.119 -1.278 -0.879

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83691.83691.09381.09382.38422.3842
S21.83693.11052.44622.37951.34643.1247
S31.83693.11052.37952.44623.12471.3464
H41.09382.44622.37951.77322.67873.2974
H51.09382.37952.44621.77323.29742.6787
H62.38421.34643.12472.67873.29743.3976
H72.38423.12471.34643.29742.67873.3976

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.770 C1 S3 H7 95.770
S2 C1 S3 115.699 S2 C1 H4 110.594
S2 C1 H5 105.756 S3 C1 H4 105.756
S3 C1 H5 110.594 H4 C1 H5 108.305
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.746      
2 S -0.049      
3 S -0.049      
4 H 0.272      
5 H 0.272      
6 H 0.150      
7 H 0.150      


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 0.428 0.428
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.010 0.026 0.000
y 0.026 7.653 0.000
z 0.000 0.000 5.063


<r2> (average value of r2) Å2
<r2> 116.841
(<r2>)1/2 10.809