return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: MP3=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP3=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-7848.607907
Energy at 298.15K-7848.617004
HF Energy-7847.479619
Nuclear repulsion energy1011.455798
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 MP3=FULL/6-31G(2df,p)
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 1161 1161 116.59      
2 A1 427 427 0.04      
3 A1 241 241 0.17      
4 E 820 820 145.35      
4 E 820 820 145.34      
5 E 330 330 0.42      
5 E 330 330 0.42      
6 E 164 164 0.00      
6 E 164 164 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 2228.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2228.1 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 MP3=FULL/6-31G(2df,p)
ABC
0.03742 0.03742 0.02199

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.416
F2 0.000 0.000 1.747
Br3 0.000 1.800 -0.174
Br4 1.558 -0.900 -0.174
Br5 -1.558 -0.900 -0.174

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.33151.89351.89351.8935
F21.33152.63192.63192.6319
Br31.89352.63193.11693.1169
Br41.89352.63193.11693.1169
Br51.89352.63193.11693.1169

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 108.126 F2 C1 Br4 108.126
F2 C1 Br5 108.126 Br3 C1 Br4 110.782
Br3 C1 Br5 110.782 Br4 C1 Br5 110.782
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability