return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP4=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at MP4=FULL/6-31G
 hartrees
Energy at 0K-109.112525
Energy at 298.15K-109.112522
HF Energy-108.858078
Nuclear repulsion energy22.602273
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 MP4=FULL/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 2007 2007        

Unscaled Zero Point Vibrational Energy (zpe) 1003.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1003.5 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 MP4=FULL/6-31G
B
1.83046

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.573
N2 0.000 0.000 -0.573

Atom - Atom Distances (Å)
  N1 N2
N11.1469
N21.1469

picture of Nitrogen diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability