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: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-5281.931326
Energy at 298.15K 
HF Energy-5281.931326
Nuclear repulsion energy471.582430
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 BLYP/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 A' 3085 3061 3.11 81.19 0.28 0.43
2 A' 1276 1266 19.56 5.64 0.74 0.85
3 A' 1079 1071 174.93 1.16 0.67 0.80
4 A' 580 575 25.52 10.44 0.10 0.19
5 A' 330 327 0.92 6.09 0.17 0.29
6 A' 161 160 0.00 4.87 0.44 0.61
7 A" 1128 1119 89.11 3.13 0.75 0.86
8 A" 617 612 222.27 3.24 0.75 0.86
9 A" 272 270 1.98 2.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4263.1 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 4230.2 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 BLYP/6-31G**
ABC
0.17581 0.03923 0.03277

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.103 0.820 0.000
H2 -1.033 1.397 0.000
F3 0.983 1.631 0.000
Br4 -0.103 -0.300 1.639
Br5 -0.103 -0.300 -1.639

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.09441.35571.98521.9852
H21.09442.02932.53612.5361
F31.35572.02932.75612.7561
Br41.98522.53612.75613.2784
Br51.98522.53612.75613.2784

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 111.395 H2 C1 Br4 107.313
H2 C1 Br5 107.313 F3 C1 Br4 109.731
F3 C1 Br5 109.731 Br4 C1 Br5 111.323
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.174      
2 H 0.167      
3 F -0.199      
4 Br -0.071      
5 Br -0.071      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.909 0.707 0.000 1.151
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.119 -1.715 0.000
y -1.715 -45.709 0.000
z 0.000 0.000 -46.613
Traceless
 xyz
x -0.958 -1.715 0.000
y -1.715 1.157 0.000
z 0.000 0.000 -0.199
Polar
3z2-r2-0.398
x2-y2-1.410
xy-1.715
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.849 0.202 0.000
y 0.202 6.003 0.000
z 0.000 0.000 9.744


<r2> (average value of r2) Å2
<r2> 263.922
(<r2>)1/2 16.246