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 BeN (Beryllium mononitride)

using model chemistry: MP2/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 4Σ
2 1 yes C*V 2Π

State 1 (4Σ)

Jump to S2C1
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-10.649098
Energy at 298.15K-10.648099
HF Energy-10.595302
Nuclear repulsion energy3.172036
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 MP2/CEP-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 Σ 852 823 21.09      

Unscaled Zero Point Vibrational Energy (zpe) 426.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 411.7 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 MP2/CEP-31G
B
1.10467

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -1.062
N2 0.000 0.000 0.607

Atom - Atom Distances (Å)
  Be1 N2
Be11.6683
N21.6683

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

State 2 (2Π)

Jump to S1C1
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-10.619343
Energy at 298.15K-10.618425
HF Energy-10.498238
Nuclear repulsion energy3.476169
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 MP2/CEP-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 Σ 1540 1489 3560.80      

Unscaled Zero Point Vibrational Energy (zpe) 770.2 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 744.3 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 MP2/CEP-31G
B
1.32666

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.969
N2 0.000 0.000 0.554

Atom - Atom Distances (Å)
  Be1 N2
Be11.5223
N21.5223

picture of Beryllium mononitride state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability