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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-836.909934
Energy at 298.15K 
HF Energy-836.909934
Nuclear repulsion energy141.756388
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 B1B95/6-31G*
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 232 221 5.18 10.24 0.59 0.75
2 A 306 290 20.86 7.37 0.66 0.79
3 A 651 618 3.80 14.23 0.20 0.34
4 A 917 871 4.86 10.58 0.50 0.66
5 A 1232 1170 1.44 22.74 0.67 0.80
6 A 1483 1408 2.88 17.25 0.74 0.85
7 A 2735 2596 4.22 117.73 0.16 0.28
8 A 3129 2970 7.74 94.36 0.11 0.20
9 B 259 246 47.65 0.98 0.75 0.86
10 B 722 685 1.55 1.83 0.75 0.86
11 B 775 736 31.87 9.15 0.75 0.86
12 B 1025 973 30.87 7.47 0.75 0.86
13 B 1293 1228 25.51 4.14 0.75 0.86
14 B 2734 2596 10.92 98.47 0.75 0.86
15 B 3189 3028 0.92 69.26 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10341.3 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 9817.0 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 B1B95/6-31G*
ABC
0.89548 0.10543 0.09874

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.774
S2 0.000 1.544 -0.179
S3 0.000 -1.544 -0.179
H4 0.877 -0.056 1.418
H5 -0.877 0.056 1.418
H6 1.113 1.281 -0.882
H7 -1.113 -1.281 -0.882

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81431.81431.09011.09012.37072.3707
S21.81433.08902.42512.35241.34323.1169
S31.81433.08902.35242.42513.11691.3432
H41.09012.42512.35241.75812.67073.2790
H51.09012.35242.42511.75813.27902.6707
H62.37071.34323.11692.67073.27903.3939
H72.37073.11691.34323.27902.67073.3939

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.172 C1 S3 H7 96.172
S2 C1 S3 116.698 S2 C1 H4 110.742
S2 C1 H5 105.452 S3 C1 H4 105.452
S3 C1 H5 110.742 H4 C1 H5 107.500
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.612      
2 S -0.054      
3 S -0.054      
4 H 0.237      
5 H 0.237      
6 H 0.124      
7 H 0.124      


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 0.422 0.422
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.472 1.981 0.000
y 1.981 -39.011 0.000
z 0.000 0.000 -32.097
Traceless
 xyz
x 4.082 1.981 0.000
y 1.981 -7.226 0.000
z 0.000 0.000 3.144
Polar
3z2-r26.288
x2-y27.539
xy1.981
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.225 0.120 0.000
y 0.120 7.845 0.000
z 0.000 0.000 5.381


<r2> (average value of r2) Å2
<r2> 115.182
(<r2>)1/2 10.732