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All results from a given calculation for Se2 (Selenium diatomic)

using model chemistry: BLYP/6-311G*

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 1Σg+

State 1 (3Σg)

Jump to S2C1
Energy calculated at BLYP/6-311G*
 hartrees
Energy at 0K-4803.132009
Energy at 298.15K 
HF Energy-4803.132009
Nuclear repulsion energy273.803727
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 BLYP/6-311G*
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 353 352 0.00 21.75 0.28 0.44

Unscaled Zero Point Vibrational Energy (zpe) 176.6 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 176.2 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 BLYP/6-311G*
B
0.08452

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 1.117
Se2 0.000 0.000 -1.117

Atom - Atom Distances (Å)
  Se1 Se2
Se12.2342
Se22.2342

picture of Selenium diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.000      
2 Se 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 -36.995 0.000 0.000
y 0.000 -36.995 0.000
z 0.000 0.000 -33.572
Traceless
 xyz
x -1.712 0.000 0.000
y 0.000 -1.712 0.000
z 0.000 0.000 3.423
Polar
3z2-r26.847
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 3.829 0.000 0.000
y 0.000 3.829 0.000
z 0.000 0.000 11.460


<r2> (average value of r2) Å2
<r2> 107.251
(<r2>)1/2 10.356

State 2 (1Σg+)

Jump to S1C1
Energy calculated at BLYP/6-311G*
 hartrees
Energy at 0K-4803.101564
Energy at 298.15K-4803.097519
Nuclear repulsion energy273.415847
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 BLYP/6-311G*
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 349 348 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 174.3 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 173.9 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 BLYP/6-311G*
B
0.08428

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 1.119
Se2 0.000 0.000 -1.119

Atom - Atom Distances (Å)
  Se1 Se2
Se12.2374
Se22.2374

picture of Selenium diatomic state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.000      
2 Se 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 -33.974 0.000 0.000
y 0.000 -40.301 0.000
z 0.000 0.000 -33.698
Traceless
 xyz
x 3.026 0.000 0.000
y 0.000 -6.465 0.000
z 0.000 0.000 3.440
Polar
3z2-r26.879
x2-y26.328
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.634 0.000 0.000
y 0.000 4.045 0.000
z 0.000 0.000 10.774


<r2> (average value of r2) Å2
<r2> 107.577
(<r2>)1/2 10.372