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All results from a given calculation for CHFClBr (fluorochlorobromomethane)

using model chemistry: PBE1PBE/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 PBE1PBE/3-21G
 hartrees
Energy at 0K-3157.295863
Energy at 298.15K-3157.300488
HF Energy-3157.295863
Nuclear repulsion energy320.354930
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 PBE1PBE/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 3185 3059 4.75 78.37 0.27 0.43
2 A 1342 1289 12.51 7.95 0.75 0.86
3 A 1269 1218 59.51 6.32 0.73 0.85
4 A 1120 1076 124.70 1.59 0.65 0.79
5 A 731 703 230.96 5.00 0.64 0.78
6 A 672 646 38.32 10.58 0.12 0.21
7 A 402 386 1.80 5.34 0.30 0.46
8 A 300 288 0.19 3.09 0.63 0.78
9 A 228 219 0.17 5.05 0.54 0.70

Unscaled Zero Point Vibrational Energy (zpe) 4624.5 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 4441.3 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 PBE1PBE/3-21G
ABC
0.20674 0.06756 0.05263

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.561 0.468 0.422
Br2 -1.199 -0.186 -0.030
Cl3 1.815 -0.702 -0.069
F4 0.791 1.674 -0.203
H5 0.606 0.573 1.503

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.93121.78401.37741.0872
Br21.93123.05792.72952.4865
Cl31.78403.05792.59072.3572
F41.37742.72952.59072.0393
H51.08722.48652.35722.0393

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 110.725 Br2 C1 F4 110.049
Br2 C1 H5 107.625 Cl3 C1 F4 109.390
Cl3 C1 H5 107.892 F4 C1 H5 111.131
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.084      
2 Br 0.007      
3 Cl 0.028      
4 F -0.255      
5 H 0.303      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.366 -0.084 1.405 1.454
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.289 0.235 1.268
y 0.235 -42.876 1.411
z 1.268 1.411 -39.682
Traceless
 xyz
x -0.010 0.235 1.268
y 0.235 -2.391 1.411
z 1.268 1.411 2.400
Polar
3z2-r24.801
x2-y21.587
xy0.235
xz1.268
yz1.411


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.041 -0.306 0.050
y -0.306 4.489 0.285
z 0.050 0.285 3.548


<r2> (average value of r2) Å2
<r2> 180.240
(<r2>)1/2 13.425