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All results from a given calculation for CHFClBr (fluorochlorobromomethane)

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 C1 1A
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-3157.704351
Energy at 298.15K-3157.708885
HF Energy-3157.704351
Nuclear repulsion energy312.893130
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 3221 3075 3.88 86.69 0.26 0.41
2 A 1336 1275 20.34 7.87 0.75 0.86
3 A 1236 1180 75.05 7.71 0.75 0.86
4 A 1150 1098 155.24 1.86 0.64 0.78
5 A 694 663 246.65 7.69 0.67 0.80
6 A 634 605 40.71 13.64 0.16 0.28
7 A 374 357 4.05 7.77 0.31 0.48
8 A 297 283 0.20 4.20 0.72 0.84
9 A 211 202 0.61 8.24 0.59 0.74

Unscaled Zero Point Vibrational Energy (zpe) 4576.2 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 4368.4 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
0.20064 0.06364 0.04988

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.547 0.511 0.427
Br2 -1.229 -0.202 -0.030
Cl3 1.893 -0.699 -0.067
F4 0.771 1.698 -0.210
H5 0.616 0.600 1.505

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.96811.87601.36531.0838
Br21.96813.16252.76442.5300
Cl31.87603.16252.65052.4064
F41.36532.76442.65052.0418
H51.08382.53002.40642.0418

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 110.689 Br2 C1 F4 110.761
Br2 C1 H5 108.493 Cl3 C1 F4 108.692
Cl3 C1 H5 105.646 F4 C1 H5 112.455
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 -0.295      
2 Br 0.164      
3 Cl 0.039      
4 F -0.236      
5 H 0.327      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.749 0.339 1.621 1.817
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.231 0.846 1.280
y 0.846 -43.208 1.344
z 1.280 1.344 -39.933
Traceless
 xyz
x -1.661 0.846 1.280
y 0.846 -1.626 1.344
z 1.280 1.344 3.287
Polar
3z2-r26.573
x2-y2-0.023
xy0.846
xz1.280
yz1.344


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.203 -0.306 0.113
y -0.306 3.772 0.423
z 0.113 0.423 2.477


<r2> (average value of r2) Å2
<r2> 189.150
(<r2>)1/2 13.753