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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B1B95/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-836.964694
Energy at 298.15K 
HF Energy-836.964694
Nuclear repulsion energy141.650041
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/daug-cc-pVDZ
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 214 214 3.31 5.05 0.38 0.55
2 A 295 295 8.81 0.94 0.20 0.33
3 A 644 644 3.05 14.55 0.14 0.25
4 A 891 891 3.76 9.92 0.08 0.15
5 A 1187 1187 0.39 3.79 0.72 0.84
6 A 1417 1417 1.31 9.13 0.65 0.79
7 A 2704 2704 0.01 151.19 0.06 0.11
8 A 3108 3108 6.41 110.34 0.06 0.12
9 B 241 241 34.87 0.14 0.75 0.86
10 B 699 699 1.01 0.68 0.75 0.86
11 B 770 770 29.22 5.03 0.75 0.86
12 B 989 989 14.65 1.14 0.75 0.86
13 B 1232 1232 25.57 0.09 0.75 0.86
14 B 2703 2703 0.18 53.40 0.75 0.86
15 B 3173 3173 1.73 59.54 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10132.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10132.3 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/daug-cc-pVDZ
ABC
0.88532 0.10571 0.09890

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.780
S2 0.000 1.542 -0.179
S3 0.000 -1.542 -0.179
H4 0.883 -0.054 1.422
H5 -0.883 0.054 1.422
H6 1.116 1.270 -0.890
H7 -1.116 -1.270 -0.890

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81631.81631.09321.09322.37622.3762
S21.81633.08492.42772.35751.35083.1080
S31.81633.08492.35752.42773.10801.3508
H41.09322.42772.35751.76942.67473.2891
H51.09322.35752.42771.76943.28912.6747
H62.37621.35083.10802.67473.28913.3810
H72.37623.10801.35083.28912.67473.3810

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.117 C1 S3 H7 96.117
S2 C1 S3 116.257 S2 C1 H4 110.638
S2 C1 H5 105.539 S3 C1 H4 105.539
S3 C1 H5 110.638 H4 C1 H5 108.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.395      
2 S 0.107      
3 S 0.107      
4 H -0.405      
5 H -0.405      
6 H 0.101      
7 H 0.101      


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 0.478 0.478
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.907 1.274 0.000
y 1.274 -38.764 0.000
z 0.000 0.000 -32.564
Traceless
 xyz
x 3.756 1.274 0.000
y 1.274 -6.528 0.000
z 0.000 0.000 2.772
Polar
3z2-r25.544
x2-y26.856
xy1.274
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.381 0.374 0.000
y 0.374 10.661 0.000
z 0.000 0.000 7.859


<r2> (average value of r2) Å2
<r2> 115.212
(<r2>)1/2 10.734