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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-5261.670424
Energy at 298.15K 
HF Energy-5261.670424
Nuclear repulsion energy470.338768
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' 3211 3065 5.43 91.66 0.26 0.41
2 A' 1332 1272 15.49 8.57 0.75 0.86
3 A' 1131 1080 150.48 1.78 0.69 0.82
4 A' 602 574 27.71 12.09 0.19 0.32
5 A' 336 321 1.84 6.39 0.30 0.46
6 A' 166 158 0.10 7.21 0.56 0.72
7 A" 1222 1166 89.15 7.81 0.75 0.86
8 A" 691 660 215.84 6.61 0.75 0.86
9 A" 281 268 0.09 3.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4485.8 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 4282.1 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
0.17574 0.03890 0.03253

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 0.805 0.000
H2 -1.030 1.369 0.000
F3 0.989 1.635 0.000
Br4 -0.104 -0.299 1.646
Br5 -0.104 -0.299 -1.646

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.08441.37241.98231.9823
H21.08442.03712.51992.5199
F31.37242.03712.76512.7651
Br41.98232.51992.76513.2928
Br51.98232.51992.76513.2928

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 111.484 H2 C1 Br4 106.822
H2 C1 Br5 106.822 F3 C1 Br4 109.684
F3 C1 Br5 109.684 Br4 C1 Br5 112.307
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 -0.348      
2 H 0.323      
3 F -0.243      
4 Br 0.134      
5 Br 0.134      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.389 0.498 0.000 1.476
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.318 -2.246 0.000
y -2.246 -46.637 0.000
z 0.000 0.000 -47.054
Traceless
 xyz
x -0.473 -2.246 0.000
y -2.246 0.549 0.000
z 0.000 0.000 -0.076
Polar
3z2-r2-0.153
x2-y2-0.681
xy-2.246
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.452 0.234 0.000
y 0.234 4.064 0.000
z 0.000 0.000 8.202


<r2> (average value of r2) Å2
<r2> 265.869
(<r2>)1/2 16.305