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

using model chemistry: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-7772.020847
Energy at 298.15K-7772.030112
HF Energy-7771.425099
Nuclear repulsion energy815.185839
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 QCISD/6-311G*
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 436 418 0.52      
2 A1 213 204 0.41      
3 E 587 562 28.39      
3 E 587 562 28.40      
4 E 153 147 0.30      
4 E 153 147 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 1065.2 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 1019.8 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 QCISD/6-311G*
ABC
0.04211 0.04211 0.02137

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.627
Br2 0.000 1.825 -0.042
Br3 1.581 -0.913 -0.042
Br4 -1.581 -0.913 -0.042

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.94401.94401.9440
Br21.94403.16163.1616
Br31.94403.16163.1616
Br41.94403.16163.1616

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 108.813 Br2 N1 Br4 108.813
Br3 N1 Br4 108.813
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability