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

using model chemistry: MP3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP3/TZVP
 hartrees
Energy at 0K-7772.412257
Energy at 298.15K-7772.421653
HF Energy-7771.563242
Nuclear repulsion energy825.823369
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 MP3/TZVP
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 452 422 1.04      
2 A1 230 216 0.34      
3 E 644 602 21.21      
3 E 644 602 21.22      
4 E 160 149 0.16      
4 E 160 149 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 1144.4 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 1070.2 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 MP3/TZVP
ABC
0.04319 0.04319 0.02191

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.607
Br2 0.000 1.803 -0.040
Br3 1.561 -0.901 -0.040
Br4 -1.561 -0.901 -0.040

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.91561.91561.9156
Br21.91563.12263.1226
Br31.91563.12263.1226
Br41.91563.12263.1226

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 109.183 Br2 N1 Br4 109.183
Br3 N1 Br4 109.183
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability