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 NBr (nitrogen monobromide)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Σ-
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-67.571895
Energy at 298.15K-67.574807
HF Energy-67.492901
Nuclear repulsion energy13.827238
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/SDD
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 801 773 59.14      

Unscaled Zero Point Vibrational Energy (zpe) 400.6 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 386.7 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/SDD
B
0.40308

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.563
Br2 0.000 0.000 0.313

Atom - Atom Distances (Å)
  N1 Br2
N11.8753
Br21.8753

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