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All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-7861.325495
Energy at 298.15K-7861.334396
HF Energy-7861.325495
Nuclear repulsion energy991.343607
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 B1B95/6-311G**
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 1124 1079 190.91      
2 A1 404 388 0.59      
3 A1 220 211 0.33      
4 E 742 713 241.73      
4 E 742 712 241.17      
5 E 310 298 0.20      
5 E 310 298 0.20      
6 E 149 143 0.06      
6 E 149 143 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 2074.8 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 1992.0 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 B1B95/6-311G**
ABC
0.03596 0.03596 0.02103

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.427
F2 0.000 0.000 1.757
Br3 0.000 1.840 -0.175
Br4 1.594 -0.920 -0.175
Br5 -1.594 -0.920 -0.175

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.32931.93611.93611.9361
F21.32932.66772.66772.6677
Br31.93612.66773.18703.1870
Br41.93612.66773.18703.1870
Br51.93612.66773.18703.1870

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 108.126 F2 C1 Br4 108.126
F2 C1 Br5 108.126 Br3 C1 Br4 110.782
Br3 C1 Br5 110.782 Br4 C1 Br5 110.782
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.143      
2 F -0.139      
3 Br 0.094      
4 Br 0.094      
5 Br 0.094      


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 -62.762 0.000 0.000
y 0.000 -62.762 0.000
z 0.000 0.000 -66.084
Traceless
 xyz
x 1.661 0.000 0.000
y 0.000 1.661 0.000
z 0.000 0.000 -3.321
Polar
3z2-r2-6.642
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 10.112 0.000 0.000
y 0.000 10.114 0.000
z 0.000 0.000 5.822


<r2> (average value of r2) Å2
<r2> 427.472
(<r2>)1/2 20.675