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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: TPSSh/aug-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 TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-836.980089
Energy at 298.15K 
HF Energy-836.980089
Nuclear repulsion energy141.185850
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/aug-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 202 195 3.53 5.47 0.38 0.55
2 A 287 277 8.72 1.04 0.17 0.30
3 A 626 605 2.95 15.07 0.14 0.24
4 A 889 858 3.41 9.75 0.08 0.15
5 A 1198 1156 0.57 3.54 0.73 0.84
6 A 1456 1405 0.83 9.23 0.63 0.77
7 A 2684 2591 0.08 144.85 0.07 0.13
8 A 3075 2968 6.48 109.01 0.07 0.12
9 B 237 228 34.36 0.21 0.75 0.86
10 B 695 671 2.82 0.43 0.75 0.86
11 B 731 706 32.67 5.25 0.75 0.86
12 B 998 964 15.22 1.11 0.75 0.86
13 B 1248 1205 28.25 0.07 0.75 0.86
14 B 2684 2590 0.51 53.99 0.75 0.86
15 B 3132 3023 1.64 59.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10071.1 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 9720.6 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 TPSSh/aug-cc-pVTZ
ABC
0.88872 0.10445 0.09787

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-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 1.551 -0.180
S3 0.000 -1.551 -0.180
H4 0.881 -0.055 1.415
H5 -0.881 0.055 1.415
H6 1.123 1.299 -0.875
H7 -1.123 -1.299 -0.875

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82361.82361.08821.08822.38432.3843
S21.82363.10252.42872.35801.34473.1414
S31.82363.10252.35802.42873.14141.3447
H41.08822.42872.35801.76622.67123.2880
H51.08822.35802.42871.76623.28802.6712
H62.38431.34473.14142.67123.28803.4339
H72.38433.14141.34473.28802.67123.4339

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.449 C1 S3 H7 96.449
S2 C1 S3 116.563 S2 C1 H4 110.478
S2 C1 H5 105.342 S3 C1 H4 105.342
S3 C1 H5 110.478 H4 C1 H5 108.488
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.098      
2 S -0.208      
3 S -0.208      
4 H 0.143      
5 H 0.143      
6 H 0.115      
7 H 0.115      


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 0.509 0.509
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 7.356 0.402 0.000
y 0.402 10.870 0.000
z 0.000 0.000 7.852


<r2> (average value of r2) Å2
<r2> 116.156
(<r2>)1/2 10.778