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

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-7735.371278
Energy at 298.15K-7735.380603
HF Energy-7734.831972
Nuclear repulsion energy815.946315
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 CCD/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 450 430 0.19      
2 A1 218 208 0.33      
3 E 623 595 25.34      
3 E 623 595 25.33      
4 E 155 148 0.21      
4 E 155 148 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 1110.7 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 1062.4 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 CCD/3-21G*
ABC
0.04236 0.04236 0.02159

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.711
Br2 0.000 1.816 -0.047
Br3 1.573 -0.908 -0.047
Br4 -1.573 -0.908 -0.047

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.96791.96791.9679
Br21.96793.14533.1453
Br31.96793.14533.1453
Br41.96793.14533.1453

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 106.095 Br2 N1 Br4 106.095
Br3 N1 Br4 106.095
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability