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All results from a given calculation for NBr3 (Nitrogen Tribromide)

using model chemistry: MP2/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/aug-cc-pVQZ
 hartrees
Energy at 0K-7772.893923
Energy at 298.15K 
HF Energy-7771.736204
Nuclear repulsion energy836.694086
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/aug-cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 436 414 1.03 4.88 0.00 0.01
2 A1 229 218 0.32 8.58 0.08 0.14
3 E 625 594 16.65 1.93 0.75 0.86
3 E 625 594 16.65 1.93 0.75 0.86
4 E 159 151 0.16 2.60 0.75 0.86
4 E 159 151 0.16 2.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1116.8 cm-1
Scaled (by 0.9497) Zero Point Vibrational Energy (zpe) 1060.6 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 MP2/aug-cc-pVQZ
ABC
0.04444 0.04444 0.02260

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVQZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.649
Br2 0.000 1.775 -0.043
Br3 1.537 -0.888 -0.043
Br4 -1.537 -0.888 -0.043

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.90521.90521.9052
Br21.90523.07443.0744
Br31.90523.07443.0744
Br41.90523.07443.0744

picture of Nitrogen Tribromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 N1 Br3 107.577 Br2 N1 Br4 107.577
Br3 N1 Br4 107.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability