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: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-836.643489
Energy at 298.15K 
HF Energy-836.466927
Nuclear repulsion energy141.468129
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 B2PLYP/cc-pVTZ
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 216 207 4.77 8.95 0.65 0.79
2 A 294 282 9.68 6.43 0.56 0.71
3 A 637 612 2.77 13.48 0.12 0.21
4 A 907 871 3.77 5.69 0.26 0.42
5 A 1211 1162 0.54 7.28 0.65 0.79
6 A 1465 1406 0.99 10.57 0.72 0.84
7 A 2713 2603 0.16 131.50 0.09 0.17
8 A 3099 2973 7.53 106.24 0.07 0.13
9 B 245 235 36.30 1.44 0.75 0.86
10 B 716 687 1.54 0.46 0.75 0.86
11 B 756 726 25.85 6.96 0.75 0.86
12 B 1011 970 16.19 2.50 0.75 0.86
13 B 1266 1214 25.44 0.29 0.75 0.86
14 B 2713 2603 0.66 71.07 0.75 0.86
15 B 3156 3028 1.41 59.98 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10202.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9787.9 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 B2PLYP/cc-pVTZ
ABC
0.89078 0.10494 0.09823

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.779
S2 0.000 1.548 -0.179
S3 0.000 -1.548 -0.179
H4 0.878 -0.055 1.416
H5 -0.878 0.055 1.416
H6 1.108 1.285 -0.887
H7 -1.108 -1.285 -0.887

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82081.82081.08591.08592.37772.3777
S21.82083.09652.42552.35481.34093.1230
S31.82083.09652.35482.42553.12301.3409
H41.08592.42552.35481.75962.67353.2801
H51.08592.35482.42551.75963.28012.6735
H62.37771.34093.12302.67353.28013.3927
H72.37773.12301.34093.28012.67353.3927

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.349 C1 S3 H7 96.349
S2 C1 S3 116.493 S2 C1 H4 110.562
S2 C1 H5 105.409 S3 C1 H4 105.409
S3 C1 H5 110.562 H4 C1 H5 108.232
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.218      
2 S -0.132      
3 S -0.132      
4 H 0.139      
5 H 0.139      
6 H 0.102      
7 H 0.102      


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 0.437 0.437
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.992 1.419 0.000
y 1.419 -38.797 0.000
z 0.000 0.000 -32.611
Traceless
 xyz
x 3.712 1.419 0.000
y 1.419 -6.495 0.000
z 0.000 0.000 2.783
Polar
3z2-r25.566
x2-y26.804
xy1.419
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.104 0.156 0.000
y 0.156 9.308 0.000
z 0.000 0.000 6.409


<r2> (average value of r2) Å2
<r2> 115.784
(<r2>)1/2 10.760