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: B3LYPultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYPultrafine/TZVP
 hartrees
Energy at 0K-836.949466
Energy at 298.15K 
HF Energy-836.949466
Nuclear repulsion energy140.111949
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 B3LYPultrafine/TZVP
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 221 213 7.77 14.37 0.63 0.77
2 A 289 279 13.93 9.72 0.58 0.74
3 A 622 600 3.19 11.73 0.15 0.27
4 A 896 863 4.33 6.24 0.30 0.46
5 A 1207 1162 1.00 14.21 0.59 0.74
6 A 1453 1400 1.40 17.57 0.71 0.83
7 A 2658 2560 1.18 148.42 0.12 0.22
8 A 3088 2975 9.41 110.02 0.08 0.14
9 B 254 244 44.75 2.88 0.75 0.86
10 B 709 683 9.05 0.01 0.75 0.86
11 B 725 698 31.63 11.42 0.75 0.86
12 B 1005 969 21.70 4.76 0.75 0.86
13 B 1270 1224 29.71 1.42 0.75 0.86
14 B 2657 2560 4.99 89.35 0.75 0.86
15 B 3145 3030 1.34 67.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10099.3 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 9729.6 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 B3LYPultrafine/TZVP
ABC
0.89177 0.10210 0.09593

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.775
S2 0.000 1.568 -0.180
S3 0.000 -1.568 -0.180
H4 0.879 -0.055 1.413
H5 -0.879 0.055 1.413
H6 1.145 1.335 -0.858
H7 -1.145 -1.335 -0.858

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83611.83611.08751.08752.39962.3996
S21.83613.13702.43812.36661.35063.1942
S31.83613.13702.36662.43813.19421.3506
H41.08752.43812.36661.76102.67553.3001
H51.08752.36662.43811.76103.30012.6755
H62.39961.35063.19422.67553.30013.5180
H72.39963.19421.35063.30012.67553.5180

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.514 C1 S3 H7 96.514
S2 C1 S3 117.353 S2 C1 H4 110.371
S2 C1 H5 105.197 S3 C1 H4 105.197
S3 C1 H5 110.371 H4 C1 H5 108.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.350      
2 S -0.076      
3 S -0.076      
4 H 0.166      
5 H 0.166      
6 H 0.085      
7 H 0.085      


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 0.431 0.431
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.734 1.900 0.000
y 1.900 -39.185 0.000
z 0.000 0.000 -32.912
Traceless
 xyz
x 4.314 1.900 0.000
y 1.900 -6.862 0.000
z 0.000 0.000 2.548
Polar
3z2-r25.095
x2-y27.451
xy1.900
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.779 0.147 0.000
y 0.147 9.036 0.000
z 0.000 0.000 5.933


<r2> (average value of r2) Å2
<r2> 118.181
(<r2>)1/2 10.871