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 CHBr2F (dibromofluoromethane)

using model chemistry: PBE1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-31G**
 hartrees
Energy at 0K-5281.139602
Energy at 298.15K 
HF Energy-5281.139602
Nuclear repulsion energy483.302455
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 PBE1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3206 3056 1.99 76.91 0.27 0.42
2 A' 1340 1277 22.69 5.01 0.72 0.84
3 A' 1164 1110 174.95 1.38 0.74 0.85
4 A' 629 600 24.63 10.38 0.10 0.18
5 A' 359 342 0.51 4.69 0.18 0.31
6 A' 177 168 0.01 3.62 0.45 0.62
7 A" 1205 1149 91.84 3.14 0.75 0.86
8 A" 707 674 203.29 4.05 0.75 0.86
9 A" 298 284 0.09 2.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4542.7 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 4329.6 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 PBE1PBE/6-31G**
ABC
0.18333 0.04135 0.03449

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.102 0.797 0.000
H2 -1.016 1.386 0.000
F3 0.974 1.592 0.000
Br4 -0.102 -0.293 1.596
Br5 -0.102 -0.293 -1.596

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.08741.33781.93291.9329
H21.08742.00012.49062.4906
F31.33782.00012.69432.6943
Br41.93292.49062.69433.1926
Br51.93292.49062.69433.1926

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 110.697 H2 C1 Br4 107.797
H2 C1 Br5 107.797 F3 C1 Br4 109.585
F3 C1 Br5 109.585 Br4 C1 Br5 111.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.100      
2 H 0.246      
3 F -0.226      
4 Br -0.060      
5 Br -0.060      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.010 0.613 0.000 1.181
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.112 -1.890 0.000
y -1.890 -45.772 0.000
z 0.000 0.000 -46.362
Traceless
 xyz
x -1.046 -1.890 0.000
y -1.890 0.965 0.000
z 0.000 0.000 0.080
Polar
3z2-r20.161
x2-y2-1.341
xy-1.890
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.735 0.150 0.000
y 0.150 5.742 0.000
z 0.000 0.000 9.018


<r2> (average value of r2) Å2
<r2> 252.276
(<r2>)1/2 15.883