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All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-7773.996484
Energy at 298.15K-7774.005149
HF Energy-7773.996484
Nuclear repulsion energy961.531401
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 B3LYP/STO-3G
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 1235 1102 124.36      
2 A1 418 373 7.32      
3 A1 222 198 0.29      
4 E 768 685 203.08      
4 E 768 685 203.09      
5 E 308 275 0.17      
5 E 308 275 0.17      
6 E 149 133 0.14      
6 E 149 133 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 2161.4 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 1928.8 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 B3LYP/STO-3G
ABC
0.03382 0.03382 0.01987

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.454
F2 0.000 0.000 1.834
Br3 0.000 1.893 -0.183
Br4 1.639 -0.947 -0.183
Br5 -1.639 -0.947 -0.183

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.37931.99751.99751.9975
F21.37932.76612.76612.7661
Br31.99752.76613.27883.2788
Br41.99752.76613.27883.2788
Br51.99752.76613.27883.2788

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 108.612 F2 C1 Br4 108.612
F2 C1 Br5 108.612 Br3 C1 Br4 110.316
Br3 C1 Br5 110.316 Br4 C1 Br5 110.316
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.018      
2 F -0.031      
3 Br 0.016      
4 Br 0.016      
5 Br 0.016      


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 0.564 0.564
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.230 0.000 0.000
y 0.000 -59.230 0.000
z 0.000 0.000 -58.484
Traceless
 xyz
x -0.373 0.000 0.000
y 0.000 -0.373 0.000
z 0.000 0.000 0.747
Polar
3z2-r21.494
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 5.240 0.000 0.000
y 0.000 5.240 0.000
z 0.000 0.000 1.984


<r2> (average value of r2) Å2
<r2> 448.126
(<r2>)1/2 21.169