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All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: MP4/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP4/cc-pVDZ
 hartrees
Energy at 0K-7855.187762
Energy at 298.15K-7855.196633
HF Energy-7854.418998
Nuclear repulsion energy979.733105
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 MP4/cc-pVDZ
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 1090 1054        
2 A1 394 381        
3 A1 218 211        
4 E 736 711        
4 E 736 711        
5 E 305 295        
5 E 305 295        
6 E 150 145        
6 E 150 145        

Unscaled Zero Point Vibrational Energy (zpe) 2041.6 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 1974.0 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 MP4/cc-pVDZ
ABC
0.03511 0.03511 0.02058

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.436
F2 0.000 0.000 1.789
Br3 0.000 1.860 -0.178
Br4 1.611 -0.930 -0.178
Br5 -1.611 -0.930 -0.178

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.35271.95881.95881.9588
F21.35272.70732.70732.7073
Br31.95882.70733.22143.2214
Br41.95882.70733.22143.2214
Br51.95882.70733.22143.2214

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 108.287 F2 C1 Br4 108.287
F2 C1 Br5 108.287 Br3 C1 Br4 110.629
Br3 C1 Br5 110.629 Br4 C1 Br5 110.629
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability