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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B3PW91/daug-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 B3PW91/daug-cc-pVTZ
 hartrees
Energy at 0K-836.861715
Energy at 298.15K 
HF Energy-836.861715
Nuclear repulsion energy141.594969
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 B3PW91/daug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 206 206 4.67 4.81 0.39 0.56
2 A 289 289 7.90 1.26 0.18 0.30
3 A 639 639 2.46 14.06 0.14 0.24
4 A 897 897 3.57 9.38 0.09 0.16
5 A 1198 1198 0.46 3.42 0.73 0.84
6 A 1442 1442 1.68 9.05 0.63 0.77
7 A 2692 2692 0.00 148.93 0.07 0.13
8 A 3084 3084 5.06 107.50 0.06 0.12
9 B 237 237 33.60 0.17 0.75 0.86
10 B 704 704 1.86 0.54 0.75 0.86
11 B 753 753 29.31 4.61 0.75 0.86
12 B 1000 1000 15.28 1.10 0.75 0.86
13 B 1249 1249 24.00 0.07 0.75 0.86
14 B 2691 2691 0.11 52.33 0.75 0.86
15 B 3140 3140 1.66 56.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10108.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10108.8 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 B3PW91/daug-cc-pVTZ
ABC
0.89655 0.10502 0.09847

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.773
S2 0.000 1.547 -0.179
S3 0.000 -1.547 -0.179
H4 0.879 -0.054 1.412
H5 -0.879 0.054 1.412
H6 1.126 1.301 -0.872
H7 -1.126 -1.301 -0.872

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81591.81591.08821.08822.38032.3803
S21.81593.09352.42212.35161.34503.1399
S31.81593.09352.35162.42213.13991.3450
H41.08822.42212.35161.76122.66753.2850
H51.08822.35162.42211.76123.28502.6675
H62.38031.34503.13992.66753.28503.4413
H72.38033.13991.34503.28502.66753.4413

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.576 C1 S3 H7 96.576
S2 C1 S3 116.811 S2 C1 H4 110.510
S2 C1 H5 105.381 S3 C1 H4 105.381
S3 C1 H5 110.510 H4 C1 H5 108.038
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.192      
2 S -0.748      
3 S -0.748      
4 H 0.364      
5 H 0.364      
6 H 0.288      
7 H 0.288      


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 0.497 0.497
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.690 1.385 0.000
y 1.385 -38.633 0.000
z 0.000 0.000 -32.577
Traceless
 xyz
x 3.914 1.385 0.000
y 1.385 -6.499 0.000
z 0.000 0.000 2.584
Polar
3z2-r25.169
x2-y26.942
xy1.385
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.378 0.390 0.000
y 0.390 10.749 0.000
z 0.000 0.000 7.846


<r2> (average value of r2) Å2
<r2> 115.565
(<r2>)1/2 10.750