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All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: PBE1PBE/aug-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 PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-7859.554404
Energy at 298.15K-7859.563318
HF Energy-7859.554404
Nuclear repulsion energy992.945155
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 PBE1PBE/aug-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 1111 1069 150.01      
2 A1 408 392 0.15      
3 A1 221 213 0.41      
4 E 743 715 195.62      
4 E 743 715 195.68      
5 E 311 299 0.11      
5 E 311 299 0.11      
6 E 149 143 0.05      
6 E 149 143 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 2073.2 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 1993.4 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 PBE1PBE/aug-cc-pVTZ
ABC
0.03607 0.03607 0.02114

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.433
F2 0.000 0.000 1.764
Br3 0.000 1.835 -0.176
Br4 1.589 -0.918 -0.176
Br5 -1.589 -0.918 -0.176

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.33071.93361.93361.9336
F21.33072.67022.67022.6702
Br31.93362.67023.17883.1788
Br41.93362.67023.17883.1788
Br51.93362.67023.17883.1788

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 108.349 F2 C1 Br4 108.349
F2 C1 Br5 108.349 Br3 C1 Br4 110.569
Br3 C1 Br5 110.569 Br4 C1 Br5 110.569
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.227      
2 F -0.301      
3 Br 0.025      
4 Br 0.025      
5 Br 0.025      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.424 0.424
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -63.115 0.000 0.000
y 0.000 -63.115 0.000
z 0.000 0.000 -66.257
Traceless
 xyz
x 1.571 0.000 0.000
y 0.000 1.571 0.000
z 0.000 0.000 -3.142
Polar
3z2-r2-6.283
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.022 0.000 0.000
y 0.000 13.023 0.000
z 0.000 0.000 9.302


<r2> (average value of r2) Å2
<r2> 426.110
(<r2>)1/2 20.642