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All results from a given calculation for S2 (Sulfur diatomic)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3Σg
2 1 yes D*H 1Σ

State 1 (3Σg)

Jump to S2C1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-792.058993
Energy at 298.15K-792.058818
HF Energy-792.058993
Nuclear repulsion energy64.664220
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 PBEPBE/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 541 536 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 270.6 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 268.1 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 PBEPBE/3-21G
B
0.24027

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.047
S2 0.000 0.000 -1.047

Atom - Atom Distances (Å)
  S1 S2
S12.0950
S22.0950

picture of Sulfur diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.000      
2 S 0.000      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.462 0.000 0.000
y 0.000 -26.462 0.000
z 0.000 0.000 -25.757
Traceless
 xyz
x -0.352 0.000 0.000
y 0.000 -0.352 0.000
z 0.000 0.000 0.705
Polar
3z2-r21.410
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.522 0.000 0.000
y 0.000 1.522 0.000
z 0.000 0.000 8.571


<r2> (average value of r2) Å2
<r2> 51.492
(<r2>)1/2 7.176

State 2 (1Σ)

Jump to S1C1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-792.021841
Energy at 298.15K-792.021661
Nuclear repulsion energy64.486560
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 PBEPBE/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 535 530 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 267.3 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 264.9 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 PBEPBE/3-21G
B
0.23895

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.050
S2 0.000 0.000 -1.050

Atom - Atom Distances (Å)
  S1 S2
S12.1007
S22.1007

picture of Sulfur diatomic state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.000      
2 S 0.000      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.942 0.000 0.000
y 0.000 -29.121 0.000
z 0.000 0.000 -25.787
Traceless
 xyz
x 3.512 0.000 0.000
y 0.000 -4.256 0.000
z 0.000 0.000 0.744
Polar
3z2-r21.488
x2-y25.179
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.731 0.000 0.000
y 0.000 1.103 0.000
z 0.000 0.000 7.920


<r2> (average value of r2) Å2
<r2> 51.721
(<r2>)1/2 7.192