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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B2PLYP/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 B2PLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-836.649230
Energy at 298.15K 
HF Energy-836.468723
Nuclear repulsion energy141.469829
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/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 215 206 4.09 4.60 0.38 0.55
2 A 292 280 7.55 1.26 0.17 0.29
3 A 638 613 2.61 15.82 0.14 0.24
4 A 906 871 3.63 8.98 0.08 0.15
5 A 1212 1165 0.56 3.25 0.72 0.84
6 A 1465 1408 1.04 9.09 0.60 0.75
7 A 2711 2605 0.00 147.59 0.06 0.12
8 A 3098 2977 5.62 106.71 0.06 0.12
9 B 240 231 32.66 0.20 0.75 0.86
10 B 716 688 1.68 0.40 0.75 0.86
11 B 755 725 26.30 5.87 0.75 0.86
12 B 1011 971 16.08 1.04 0.75 0.86
13 B 1265 1216 25.33 0.06 0.75 0.86
14 B 2710 2605 0.10 51.70 0.75 0.86
15 B 3155 3032 1.54 55.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10193.5 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 9796.0 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/aug-cc-pVTZ
ABC
0.88997 0.10497 0.09828

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/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 1.548 -0.180
S3 0.000 -1.548 -0.180
H4 0.879 -0.054 1.415
H5 -0.879 0.054 1.415
H6 1.114 1.290 -0.880
H7 -1.114 -1.290 -0.880

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82071.82071.08591.08592.37932.3793
S21.82073.09552.42482.35531.34133.1285
S31.82073.09552.35532.42483.12851.3413
H41.08592.42482.35531.76072.67053.2819
H51.08592.35532.42481.76073.28192.6705
H62.37931.34133.12852.67053.28193.4097
H72.37933.12851.34133.28192.67053.4097

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.434 C1 S3 H7 96.434
S2 C1 S3 116.442 S2 C1 H4 110.511
S2 C1 H5 105.445 S3 C1 H4 105.445
S3 C1 H5 110.511 H4 C1 H5 108.323
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.396      
2 S -0.205      
3 S -0.205      
4 H 0.255      
5 H 0.255      
6 H 0.148      
7 H 0.148      


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 0.483 0.483
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.243 1.284 0.000
y 1.284 -39.084 0.000
z 0.000 0.000 -32.999
Traceless
 xyz
x 3.799 1.284 0.000
y 1.284 -6.463 0.000
z 0.000 0.000 2.664
Polar
3z2-r25.329
x2-y26.841
xy1.284
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.357 0.384 0.000
y 0.384 10.716 0.000
z 0.000 0.000 7.845


<r2> (average value of r2) Å2
<r2> 115.969
(<r2>)1/2 10.769