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All results from a given calculation for CFClBrI (fluorochlorobromoiodomethane)

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-68.262744
Energy at 298.15K 
HF Energy-68.262744
Nuclear repulsion energy85.152421
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 HF/CEP-121G
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 1101 1004 199.79 14.68 0.52 0.69
2 A 826 754 203.46 28.18 0.75 0.86
3 A 785 716 207.78 30.05 0.75 0.86
4 A 446 407 1.29 17.68 0.04 0.07
5 A 335 306 1.42 7.65 0.56 0.72
6 A 290 265 2.92 6.43 0.75 0.86
7 A 258 235 0.80 17.69 0.26 0.41
8 A 190 173 0.18 7.95 0.69 0.82
9 A 146 133 0.10 7.93 0.65 0.79

Unscaled Zero Point Vibrational Energy (zpe) 2187.8 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 1996.3 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 HF/CEP-121G
ABC
0.05768 0.02509 0.02027

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.419 0.458 0.327
F2 0.514 0.671 1.700
Cl3 0.724 2.075 -0.471
Br4 1.833 -0.832 -0.147
I5 -1.577 -0.282 -0.078

Atom - Atom Distances (Å)
  C1 F2 Cl3 Br4 I5
C11.39261.82811.97222.1672
F21.39262.59342.72192.9058
Cl31.82812.59343.12813.3173
Br41.97222.72193.12813.4553
I52.16722.90583.31733.4553

picture of fluorochlorobromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Cl3 106.477 F2 C1 Br4 106.712
F2 C1 I5 107.421 Cl3 C1 Br4 110.741
Cl3 C1 I5 111.977 Br4 C1 I5 113.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.503      
2 F -0.216      
3 Cl 0.100      
4 Br 0.252      
5 I 0.367      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.039 -1.184 -1.291 2.037
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -54.520 -0.196 -0.306
y -0.196 -59.198 -0.294
z -0.306 -0.294 -61.747
Traceless
 xyz
x 5.952 -0.196 -0.306
y -0.196 -1.064 -0.294
z -0.306 -0.294 -4.888
Polar
3z2-r2-9.776
x2-y24.678
xy-0.196
xz-0.306
yz-0.294


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.945 0.269 -0.063
y 0.269 7.979 -0.228
z -0.063 -0.228 3.876


<r2> (average value of r2) Å2
<r2> 145.619
(<r2>)1/2 12.067