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: PBEPBEultrafine/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 PBEPBEultrafine/Def2TZVPP
 hartrees
Energy at 0K-836.530712
Energy at 298.15K 
HF Energy-836.530712
Nuclear repulsion energy141.013320
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 PBEPBEultrafine/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 199 199 4.54 9.74 0.62 0.77
2 A 285 285 8.70 5.97 0.52 0.68
3 A 615 615 2.08 9.28 0.15 0.25
4 A 871 871 3.57 6.96 0.16 0.27
5 A 1158 1158 0.70 7.57 0.56 0.72
6 A 1395 1395 1.64 13.05 0.73 0.84
7 A 2612 2612 0.23 138.71 0.08 0.15
8 A 3005 3005 7.21 117.79 0.06 0.12
9 B 242 242 37.63 1.21 0.75 0.86
10 B 681 681 3.43 0.36 0.75 0.86
11 B 717 717 31.86 5.50 0.75 0.86
12 B 968 968 15.02 2.77 0.75 0.86
13 B 1205 1205 23.64 0.99 0.75 0.86
14 B 2612 2612 0.93 69.37 0.75 0.86
15 B 3061 3061 1.83 64.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9813.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9813.2 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 PBEPBEultrafine/Def2TZVPP
ABC
0.89282 0.10410 0.09763

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.773
S2 0.000 1.554 -0.178
S3 0.000 -1.554 -0.178
H4 0.885 -0.059 1.418
H5 -0.885 0.059 1.418
H6 1.126 1.293 -0.882
H7 -1.126 -1.293 -0.882

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82191.82191.09671.09672.38282.3828
S21.82193.10812.43582.35891.35313.1417
S31.82193.10812.35892.43583.14171.3531
H41.09672.43582.35891.77382.67883.2946
H51.09672.35892.43581.77383.29462.6788
H62.38281.35313.14172.67883.29463.4297
H72.38283.14171.35313.29462.67883.4297

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.144 C1 S3 H7 96.144
S2 C1 S3 117.080 S2 C1 H4 110.681
S2 C1 H5 105.121 S3 C1 H4 105.121
S3 C1 H5 110.681 H4 C1 H5 107.934
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.150      
2 S -0.168      
3 S -0.168      
4 H 0.137      
5 H 0.137      
6 H 0.106      
7 H 0.106      


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 0.446 0.446
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.760 1.351 0.000
y 1.351 -38.428 0.000
z 0.000 0.000 -32.560
Traceless
 xyz
x 3.734 1.351 0.000
y 1.351 -6.269 0.000
z 0.000 0.000 2.534
Polar
3z2-r25.069
x2-y26.668
xy1.351
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.374 0.201 0.000
y 0.201 9.925 0.000
z 0.000 0.000 6.713


<r2> (average value of r2) Å2
<r2> 116.302
(<r2>)1/2 10.784