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All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: MP2/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 MP2/cc-pVTZ
 hartrees
Energy at 0K-7855.798204
Energy at 298.15K-7855.807178
HF Energy-7854.702257
Nuclear repulsion energy996.253431
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/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 1101 1045 148.27      
2 A1 414 393 0.15      
3 A1 227 215 0.28      
4 E 772 733 185.85      
4 E 772 733 185.85      
5 E 316 300 0.00      
5 E 316 300 0.00      
6 E 153 145 0.03      
6 E 153 145 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 2112.1 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 2005.5 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/cc-pVTZ
ABC
0.03631 0.03631 0.02132

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.429
F2 0.000 0.000 1.770
Br3 0.000 1.827 -0.176
Br4 1.583 -0.914 -0.176
Br5 -1.583 -0.914 -0.176

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.34121.92491.92491.9249
F21.34122.66952.66952.6695
Br31.92492.66953.16513.1651
Br41.92492.66953.16513.1651
Br51.92492.66953.16513.1651

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 108.315 F2 C1 Br4 108.315
F2 C1 Br5 108.315 Br3 C1 Br4 110.602
Br3 C1 Br5 110.602 Br4 C1 Br5 110.602
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability