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All results from a given calculation for CHBr2F (dibromofluoromethane)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-5262.148443
Energy at 298.15K 
HF Energy-5262.148443
Nuclear repulsion energy482.226842
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 mPW1PW91/3-21G*
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' 3192 3031 4.09 78.81 0.27 0.43
2 A' 1335 1267 14.59 7.10 0.75 0.86
3 A' 1116 1060 120.14 1.68 0.73 0.84
4 A' 637 605 22.28 10.58 0.10 0.18
5 A' 349 331 0.55 4.63 0.24 0.38
6 A' 172 163 0.03 3.87 0.50 0.67
7 A" 1233 1170 71.34 4.85 0.75 0.86
8 A" 714 678 191.10 4.65 0.75 0.86
9 A" 282 267 0.25 2.43 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4514.5 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 4287.0 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 mPW1PW91/3-21G*
ABC
0.17531 0.04185 0.03455

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.104 0.804 0.000
H2 -1.026 1.379 0.000
F3 0.996 1.635 0.000
Br4 -0.104 -0.299 1.586
Br5 -0.104 -0.299 -1.586

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.08571.37871.93231.9323
H21.08572.03782.48612.4861
F31.37872.03782.73242.7324
Br41.93232.48612.73243.1729
Br51.93232.48612.73243.1729

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 111.006 H2 C1 Br4 107.590
H2 C1 Br5 107.590 F3 C1 Br4 110.108
F3 C1 Br5 110.108 Br4 C1 Br5 110.379
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.026      
2 H 0.297      
3 F -0.260      
4 Br -0.006      
5 Br -0.006      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.283 0.289 0.000 1.316
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.055 -2.343 0.000
y -2.343 -45.935 0.000
z 0.000 0.000 -45.522
Traceless
 xyz
x -1.326 -2.343 0.000
y -2.343 0.353 0.000
z 0.000 0.000 0.973
Polar
3z2-r21.946
x2-y2-1.119
xy-2.343
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.065 0.194 0.000
y 0.194 5.153 0.000
z 0.000 0.000 8.243


<r2> (average value of r2) Å2
<r2> 251.908
(<r2>)1/2 15.872