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

using model chemistry: QCISD/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-7772.673969
Energy at 298.15K-7772.683360
HF Energy-7771.724989
Nuclear repulsion energy831.345391
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/aug-cc-pVTZ
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 444 427 1.65      
2 A1 225 217 0.35      
3 E 648 624 15.60      
3 E 648 624 15.61      
4 E 160 154 0.11      
4 E 160 154 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 1142.4 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 1099.5 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/aug-cc-pVTZ
ABC
0.04379 0.04379 0.02222

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.613
Br2 0.000 1.790 -0.041
Br3 1.550 -0.895 -0.041
Br4 -1.550 -0.895 -0.041

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.90571.90571.9057
Br21.90573.10043.1004
Br31.90573.10043.1004
Br41.90573.10043.1004

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 108.867 Br2 N1 Br4 108.867
Br3 N1 Br4 108.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability