return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: BLYP/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-836.864710
Energy at 298.15K 
HF Energy-836.864710
Nuclear repulsion energy138.405032
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/daug-cc-pVDZ
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 201 201 4.71 7.39 0.39 0.56
2 A 272 272 6.55 1.63 0.16 0.28
3 A 586 586 2.11 17.34 0.14 0.25
4 A 850 850 3.05 12.24 0.08 0.15
5 A 1146 1146 0.65 3.85 0.73 0.85
6 A 1371 1371 0.62 11.26 0.59 0.74
7 A 2561 2561 0.38 166.80 0.07 0.14
8 A 3006 3006 7.46 112.93 0.07 0.13
9 B 234 234 32.31 0.28 0.75 0.86
10 B 658 658 43.16 2.58 0.75 0.86
11 B 679 679 8.78 3.17 0.75 0.86
12 B 957 957 12.87 1.48 0.75 0.86
13 B 1188 1188 32.21 0.22 0.75 0.86
14 B 2560 2560 2.31 54.47 0.75 0.86
15 B 3067 3067 1.89 62.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9667.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9667.9 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/daug-cc-pVDZ
ABC
0.86963 0.09963 0.09366

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.784
S2 0.000 1.587 -0.183
S3 0.000 -1.587 -0.183
H4 0.893 -0.057 1.427
H5 -0.893 0.057 1.427
H6 1.170 1.357 -0.853
H7 -1.170 -1.357 -0.853

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.85891.85891.10181.10182.42702.4270
S21.85893.17482.46842.39421.36763.2382
S31.85893.17482.39422.46843.23821.3676
H41.10182.46842.39421.78982.69703.3382
H51.10182.39422.46841.78983.33822.6970
H62.42701.36763.23822.69703.33823.5829
H72.42703.23821.36763.33822.69703.5829

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.374 C1 S3 H7 96.374
S2 C1 S3 117.284 S2 C1 H4 110.340
S2 C1 H5 105.041 S3 C1 H4 105.041
S3 C1 H5 110.340 H4 C1 H5 108.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.759      
2 S 0.157      
3 S 0.157      
4 H -0.571      
5 H -0.571      
6 H 0.034      
7 H 0.034      


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 0.523 0.523
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.268 1.385 0.000
y 1.385 -39.271 0.000
z 0.000 0.000 -33.619
Traceless
 xyz
x 4.178 1.385 0.000
y 1.385 -6.328 0.000
z 0.000 0.000 2.150
Polar
3z2-r24.301
x2-y27.004
xy1.385
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.913 0.484 0.000
y 0.484 11.875 0.000
z 0.000 0.000 8.405


<r2> (average value of r2) Å2
<r2> 120.837
(<r2>)1/2 10.993