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All results from a given calculation for BrF5 (bromine pentafluoride)

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C4V 1A1
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-3054.811295
Energy at 298.15K-3054.816072
Nuclear repulsion energy622.348303
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 MP2/3-21G
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 606 578 20.97      
2 A1 523 500 0.34      
3 A1 349 333 59.44      
4 B1 260 249 0.00      
5 B2 516 492 0.00      
6 B2 200 191 0.00      
7 E 651 621 143.47      
7 E 651 621 143.47      
8 E 349 333 10.11      
8 E 349 333 10.11      
9 E 193 184 5.27      
9 E 193 184 5.27      

Unscaled Zero Point Vibrational Energy (zpe) 2419.6 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 2309.5 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 MP2/3-21G
ABC
0.09732 0.09732 0.06788

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C4v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Br1 0.000 0.000 0.304
F2 0.000 0.000 -1.475
F3 0.000 1.808 0.073
F4 -1.808 0.000 0.073
F5 0.000 -1.808 0.073
F6 1.808 0.000 0.073

Atom - Atom Distances (Å)
  Br1 F2 F3 F4 F5 F6
Br11.77931.82241.82241.82241.8224
F21.77932.38032.38032.38032.3803
F31.82242.38032.55663.61552.5566
F41.82242.38032.55662.55663.6155
F51.82242.38033.61552.55662.5566
F61.82242.38032.55663.61552.5566

picture of bromine pentafluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Br1 F3 82.724 F2 Br1 F4 82.724
F2 Br1 F5 82.724 F2 Br1 F6 82.724
F3 Br1 F4 89.081 F3 Br1 F5 165.448
F3 Br1 F6 89.081 F4 Br1 F5 89.081
F4 Br1 F6 165.448 F5 Br1 F6 89.081
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability