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All results from a given calculation for N2 (Nitrogen diatomic)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

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

State 1 (1Σg)

Jump to S2C1
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-109.491156
Energy at 298.15K-109.491154
HF Energy-109.491156
Nuclear repulsion energy23.531817
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 mPW1PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 2497 2368 0.00 14.94 0.27 0.42

Unscaled Zero Point Vibrational Energy (zpe) 1248.7 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 1184.1 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 mPW1PW91/6-31G*
B
1.98299

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.551
N2 0.000 0.000 -0.551

Atom - Atom Distances (Å)
  N1 N2
N11.1019
N21.1019

picture of Nitrogen diatomic state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.000      
2 N 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 -10.041 0.000 0.000
y 0.000 -10.041 0.000
z 0.000 0.000 -11.563
Traceless
 xyz
x 0.761 0.000 0.000
y 0.000 0.761 0.000
z 0.000 0.000 -1.522
Polar
3z2-r2-3.044
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 0.910 0.000 0.000
y 0.000 0.910 0.000
z 0.000 0.000 1.988


<r2> (average value of r2) Å2
<r2> 10.838
(<r2>)1/2 3.292

State 2 (3Π)

Jump to S1C1
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-109.233352
Energy at 298.15K 
HF Energy-109.233352
Nuclear repulsion energy21.517553
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 mPW1PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 1890 1792 0.00 12059.35 0.24 0.38

Unscaled Zero Point Vibrational Energy (zpe) 945.0 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 896.1 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 mPW1PW91/6-31G*
B
1.65804

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.603
N2 0.000 0.000 -0.603

Atom - Atom Distances (Å)
  N1 N2
N11.2050
N21.2050

picture of Nitrogen diatomic state 2 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.000      
2 N 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 -10.195 0.000 0.000
y 0.000 -11.389 0.000
z 0.000 0.000 -9.887
Traceless
 xyz
x 0.443 0.000 0.000
y 0.000 -1.347 0.000
z 0.000 0.000 0.904
Polar
3z2-r21.809
x2-y21.193
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.044 0.000 0.000
y 0.000 -0.719 0.000
z 0.000 0.000 3.386


<r2> (average value of r2) Å2
<r2> 11.635
(<r2>)1/2 3.411