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

using model chemistry: MP3=FULL/3-21G

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=FULL/3-21G
 hartrees
Energy at 0K-7734.443441
Energy at 298.15K 
HF Energy-7734.185920
Nuclear repulsion energy793.207983
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=FULL/3-21G
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 393 393 1.14      
2 A1 221 221 0.55      
3 E 610 610 39.44      
3 E 610 610 39.44      
4 E 152 152 0.22      
4 E 152 152 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 1068.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1068.7 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 MP3=FULL/3-21G
ABC
0.03985 0.03985 0.02022

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.636
Br2 0.000 1.877 -0.042
Br3 1.625 -0.938 -0.042
Br4 -1.625 -0.938 -0.042

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.99551.99551.9955
Br21.99553.25043.2504
Br31.99553.25043.2504
Br41.99553.25043.2504

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 109.065 Br2 N1 Br4 109.065
Br3 N1 Br4 109.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability