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All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: HF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-7846.482963
Energy at 298.15K-7846.491941
HF Energy-7846.482963
Nuclear repulsion energy979.197945
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 HF/6-31G
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 1162 1049 158.16      
2 A1 398 359 1.06      
3 A1 232 209 0.00      
4 E 787 711 196.28      
4 E 787 711 196.28      
5 E 316 286 1.64      
5 E 316 286 1.64      
6 E 158 143 0.01      
6 E 158 143 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 2157.2 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 1947.7 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 HF/6-31G
ABC
0.03508 0.03508 0.02053

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.412
F2 0.000 0.000 1.787
Br3 0.000 1.862 -0.177
Br4 1.613 -0.931 -0.177
Br5 -1.613 -0.931 -0.177

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.37521.95311.95311.9531
F21.37522.70662.70662.7066
Br31.95312.70663.22533.2253
Br41.95312.70663.22533.2253
Br51.95312.70663.22533.2253

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 107.552 F2 C1 Br4 107.552
F2 C1 Br5 107.552 Br3 C1 Br4 111.320
Br3 C1 Br5 111.320 Br4 C1 Br5 111.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.350      
2 F -0.338      
3 Br 0.229      
4 Br 0.229      
5 Br 0.229      


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 -1.282 1.282
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -64.413 0.000 0.000
y 0.000 -64.413 0.000
z 0.000 0.000 -68.944
Traceless
 xyz
x 2.265 0.000 0.000
y 0.000 2.265 0.000
z 0.000 0.000 -4.531
Polar
3z2-r2-9.062
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 8.514 0.000 0.000
y 0.000 8.514 0.000
z 0.000 0.000 3.742


<r2> (average value of r2) Å2
<r2> 438.319
(<r2>)1/2 20.936