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All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: TPSSh/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 TPSSh/STO-3G
 hartrees
Energy at 0K-7774.001615
Energy at 298.15K-7774.010276
HF Energy-7774.001615
Nuclear repulsion energy961.731484
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 TPSSh/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 1241 1241 129.99      
2 A1 418 418 7.71      
3 A1 221 221 0.33      
4 E 768 768 214.54      
4 E 767 767 214.62      
5 E 308 308 0.29      
5 E 308 308 0.29      
6 E 147 147 0.15      
6 E 147 147 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 2162.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2162.5 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 TPSSh/STO-3G
ABC
0.03383 0.03383 0.01989

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.458
F2 0.000 0.000 1.836
Br3 0.000 1.892 -0.183
Br4 1.639 -0.946 -0.183
Br5 -1.639 -0.946 -0.183

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.37791.99781.99781.9978
F21.37792.76712.76712.7671
Br31.99782.76713.27733.2773
Br41.99782.76713.27733.2773
Br51.99782.76713.27733.2773

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 108.718 F2 C1 Br4 108.718
F2 C1 Br5 108.718 Br3 C1 Br4 110.214
Br3 C1 Br5 110.214 Br4 C1 Br5 110.214
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.015      
2 F -0.021      
3 Br 0.012      
4 Br 0.012      
5 Br 0.012      


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 0.680 0.680
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.294 0.000 0.000
y 0.000 5.294 0.000
z 0.000 0.000 2.008


<r2> (average value of r2) Å2
<r2> 447.870
(<r2>)1/2 21.163