return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: PBEPBE/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 PBEPBE/STO-3G
 hartrees
Energy at 0K-7772.596608
Energy at 298.15K-7772.605216
HF Energy-7772.596608
Nuclear repulsion energy958.512871
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 PBEPBE/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 1230 1124 129.25      
2 A1 414 378 7.39      
3 A1 217 199 0.23      
4 E 738 675 227.21      
4 E 738 675 227.22      
5 E 303 277 0.87      
5 E 303 277 0.87      
6 E 145 133 0.10      
6 E 145 133 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 2116.9 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 1934.0 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 PBEPBE/STO-3G
ABC
0.03361 0.03361 0.01976

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.461
F2 0.000 0.000 1.842
Br3 0.000 1.898 -0.184
Br4 1.644 -0.949 -0.184
Br5 -1.644 -0.949 -0.184

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.38112.00512.00512.0051
F21.38112.77692.77692.7769
Br32.00512.77693.28803.2880
Br42.00512.77693.28803.2880
Br52.00512.77693.28803.2880

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 108.782 F2 C1 Br4 108.782
F2 C1 Br5 108.782 Br3 C1 Br4 110.152
Br3 C1 Br5 110.152 Br4 C1 Br5 110.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.029      
2 F 0.001      
3 Br 0.009      
4 Br 0.009      
5 Br 0.009      


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 0.794 0.794
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.234 0.000 0.000
y 0.000 -59.234 0.000
z 0.000 0.000 -57.934
Traceless
 xyz
x -0.650 0.000 0.000
y 0.000 -0.650 0.000
z 0.000 0.000 1.299
Polar
3z2-r22.599
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 5.387 0.000 0.000
y 0.000 5.387 0.000
z 0.000 0.000 2.077


<r2> (average value of r2) Å2
<r2> 450.492
(<r2>)1/2 21.225