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return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for (dibromofluoromethane)

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-5285.997220
Energy at 298.15K 
HF Energy-5285.997220
Nuclear repulsion energy477.533550
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3075 3038 0.29 79.09 0.23 0.37
2 A' 1260 1245 9.47 3.75 0.60 0.75
3 A' 1047 1034 185.61 1.14 0.75 0.86
4 A' 600 592 24.25 9.68 0.08 0.14
5 A' 346 342 0.36 5.72 0.15 0.27
6 A' 161 159 0.01 4.03 0.43 0.60
7 A" 1131 1118 69.70 0.98 0.75 0.86
8 A" 658 650 213.42 3.52 0.75 0.86
9 A" 284 280 0.64 2.30 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4280.3 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 4228.5 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 PBEPBE/Def2TZVPP
ABC
0.18072 0.04017 0.03357

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.102 0.793 0.000
H2 -1.022 1.383 0.000
F3 0.977 1.610 0.000
Br4 -0.102 -0.295 1.620
Br5 -0.102 -0.295 -1.620

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.09321.35421.95111.9511
H21.09322.01272.50712.5071
F31.35422.01272.72372.7237
Br41.95112.50712.72373.2400
Br51.95112.50712.72373.2400

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 110.189 H2 C1 Br4 107.511
H2 C1 Br5 107.511 F3 C1 Br4 109.661
F3 C1 Br5 109.661 Br4 C1 Br5 112.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.055      
2 H 0.157      
3 F -0.109      
4 Br -0.051      
5 Br -0.051      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.979 0.489 0.000 1.095
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.903 -1.950 0.000
y -1.950 -46.740 0.000
z 0.000 0.000 -47.045
Traceless
 xyz
x -1.011 -1.950 0.000
y -1.950 0.734 0.000
z 0.000 0.000 0.277
Polar
3z2-r20.554
x2-y2-1.164
xy-1.950
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.074 0.241 0.000
y 0.241 7.161 0.000
z 0.000 0.000 10.974


<r2> (average value of r2) Å2
<r2> 258.740
(<r2>)1/2 16.085