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

using model chemistry: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-7772.176216
Energy at 298.15K 
HF Energy-7771.456942
Nuclear repulsion energy828.778952
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 MP2/6-311+G(3df,2p)
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 437 412 1.12 3.58 0.00 0.00
2 A1 226 213 0.34 8.47 0.08 0.15
3 E 608 573 15.89 1.64 0.75 0.86
3 E 608 573 15.89 1.64 0.75 0.86
4 E 157 148 0.21 2.76 0.75 0.86
4 E 157 148 0.21 2.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1095.8 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 1033.8 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 MP2/6-311+G(3df,2p)
ABC
0.04360 0.04360 0.02217

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.653
Br2 0.000 1.792 -0.044
Br3 1.552 -0.896 -0.044
Br4 -1.552 -0.896 -0.044

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.92261.92261.9226
Br21.92263.10423.1042
Br31.92263.10423.1042
Br41.92263.10423.1042

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 107.661 Br2 N1 Br4 107.661
Br3 N1 Br4 107.661
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability