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All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: B3LYP/3-21G*

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/3-21G*
 hartrees
Energy at 0K-7823.289195
Energy at 298.15K-7823.297956
HF Energy-7823.289195
Nuclear repulsion energy985.242005
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/3-21G*
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 1092 1050 109.07      
2 A1 389 374 0.71      
3 A1 210 202 0.05      
4 E 715 688 209.51      
4 E 715 688 209.44      
5 E 285 274 0.03      
5 E 285 274 0.03      
6 E 147 141 0.04      
6 E 147 141 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 1991.9 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 1916.2 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/3-21G*
ABC
0.03548 0.03548 0.02103

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.456
F2 0.000 0.000 1.833
Br3 0.000 1.840 -0.183
Br4 1.594 -0.920 -0.183
Br5 -1.594 -0.920 -0.183

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.37701.94791.94791.9479
F21.37702.72942.72942.7294
Br31.94792.72943.18743.1874
Br41.94792.72943.18743.1874
Br51.94792.72943.18743.1874

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 109.140 F2 C1 Br4 109.140
F2 C1 Br5 109.140 Br3 C1 Br4 109.800
Br3 C1 Br5 109.800 Br4 C1 Br5 109.800
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.120      
2 F -0.236      
3 Br 0.039      
4 Br 0.039      
5 Br 0.039      


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 -0.672 0.672
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -61.477 0.000 0.000
y 0.000 -61.477 0.000
z 0.000 0.000 -65.383
Traceless
 xyz
x 1.953 0.000 0.000
y 0.000 1.953 0.000
z 0.000 0.000 -3.906
Polar
3z2-r2-7.812
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 9.466 0.000 0.000
y 0.000 9.466 0.000
z 0.000 0.000 5.763


<r2> (average value of r2) Å2
<r2> 429.790
(<r2>)1/2 20.731