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

using model chemistry: QCISD/6-311G*

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 QCISD/6-311G*
 hartrees
Energy at 0K-109.277158
Energy at 298.15K-109.277151
HF Energy-108.968167
Nuclear repulsion energy23.484873
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 QCISD/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 1650 1579 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 824.8 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 789.6 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 QCISD/6-311G*
B
1.97508

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.552
N2 0.000 0.000 -0.552

Atom - Atom Distances (Å)
  N1 N2
N11.1041
N21.1041

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability

State 2 (3Π)

Jump to S1C1
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-109.027515
Energy at 298.15K 
HF Energy-108.699806
Nuclear repulsion energy21.256568
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 QCISD/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 1770 1695 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 885.0 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 847.3 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 QCISD/6-311G*
B
1.61806

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.610
N2 0.000 0.000 -0.610

Atom - Atom Distances (Å)
  N1 N2
N11.2198
N21.2198

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability