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 CF3Br (Bromotrifluoromethane)

using model chemistry: HF/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 HF/3-21G
 hartrees
Energy at 0K-2894.406257
Energy at 298.15K 
HF Energy-2894.406257
Nuclear repulsion energy363.567756
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/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 1198 1085 592.41 5.35 0.75 0.86
2 A1 770 698 72.73 6.41 0.07 0.12
3 A1 349 316 0.12 8.91 0.36 0.53
4 E 1420 1286 284.72 0.86 0.75 0.86
4 E 1420 1286 284.72 0.86 0.75 0.86
5 E 559 506 12.32 1.76 0.75 0.86
5 E 559 506 12.32 1.76 0.75 0.86
6 E 310 281 0.90 2.48 0.75 0.86
6 E 310 281 0.90 2.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3447.5 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 3122.1 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/3-21G
ABC
0.18854 0.06778 0.06778

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.826
Br2 0.000 0.000 1.135
F3 0.000 1.252 -1.287
F4 1.085 -0.626 -1.287
F5 -1.085 -0.626 -1.287

Atom - Atom Distances (Å)
  C1 Br2 F3 F4 F5
C11.96101.33471.33471.3347
Br21.96102.72682.72682.7268
F31.33472.72682.16942.1694
F41.33472.72682.16942.1694
F51.33472.72682.16942.1694

picture of Bromotrifluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 F3 110.210 Br2 C1 F4 110.210
Br2 C1 F5 110.210 F3 C1 F4 108.722
F3 C1 F5 108.722 F4 C1 F5 108.722
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.912      
2 Br 0.178      
3 F -0.363      
4 F -0.363      
5 F -0.363      


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 0.885 0.885
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.912 0.000 0.000
y 0.000 -39.912 0.000
z 0.000 0.000 -37.903
Traceless
 xyz
x -1.005 0.000 0.000
y 0.000 -1.005 0.000
z 0.000 0.000 2.009
Polar
3z2-r24.019
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 1.813 0.000 0.000
y 0.000 1.813 0.000
z 0.000 0.000 4.661


<r2> (average value of r2) Å2
<r2> 160.776
(<r2>)1/2 12.680