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-5281.929679
Energy at 298.15K 
HF Energy-5281.929679
Nuclear repulsion energy471.522441
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' 3094 3069 3.74 80.72 0.28 0.44
2 A' 1285 1274 21.24 5.67 0.74 0.85
3 A' 1079 1070 174.63 1.17 0.66 0.80
4 A' 580 575 25.43 10.48 0.10 0.19
5 A' 330 327 0.92 6.07 0.17 0.29
6 A' 161 160 0.00 4.88 0.44 0.61
7 A" 1136 1127 93.51 3.32 0.75 0.86
8 A" 617 612 221.74 3.23 0.75 0.86
9 A" 272 270 1.93 2.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4276.2 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 4241.5 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 BLYP/6-31G*
ABC
0.17580 0.03922 0.03276

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 -1.030 1.402 0.000
F3 0.984 1.630 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
C11.09421.35591.98561.9856
H21.09422.02682.53852.5385
F31.35592.02682.75602.7560
Br41.98562.53852.75603.2788
Br51.98562.53852.75603.2788

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 111.181 H2 C1 Br4 107.465
H2 C1 Br5 107.465 F3 C1 Br4 109.695
F3 C1 Br5 109.695 Br4 C1 Br5 111.309
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 0.126      
2 H 0.205      
3 F -0.196      
4 Br -0.068      
5 Br -0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.912 0.709 0.000 1.155
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.128 -1.722 0.000
y -1.722 -45.700 0.000
z 0.000 0.000 -46.608
Traceless
 xyz
x -0.974 -1.722 0.000
y -1.722 1.169 0.000
z 0.000 0.000 -0.194
Polar
3z2-r2-0.388
x2-y2-1.429
xy-1.722
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.840 0.205 0.000
y 0.205 5.990 0.000
z 0.000 0.000 9.733


<r2> (average value of r2) Å2
<r2> 263.975
(<r2>)1/2 16.247