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All results from a given calculation for CHFClI (fluorochloroiodomethane)

using model chemistry: PBEPBE/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 PBEPBE/3-21G*
 hartrees
Energy at 0K-7485.562998
Energy at 298.15K 
HF Energy-7485.562998
Nuclear repulsion energy405.026128
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 PBEPBE/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 3070 2927 3.78 85.39 0.29 0.45
2 A 1282 1223 8.27 7.94 0.75 0.86
3 A 1176 1121 78.45 5.77 0.51 0.68
4 A 1064 1014 123.50 1.22 0.69 0.82
5 A 653 622 220.20 3.54 0.64 0.78
6 A 565 538 60.96 13.46 0.16 0.28
7 A 369 352 2.18 5.70 0.30 0.46
8 A 245 234 0.13 4.71 0.45 0.62
9 A 180 172 0.02 7.31 0.46 0.63

Unscaled Zero Point Vibrational Energy (zpe) 4301.8 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 4101.8 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 PBEPBE/3-21G*
ABC
0.19642 0.04677 0.03875

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.015 0.493 0.432
H2 1.086 0.594 1.523
F3 1.306 1.688 -0.215
Cl4 2.193 -0.784 -0.074
I5 -1.061 -0.102 -0.018

Atom - Atom Distances (Å)
  C1 H2 F3 Cl4 I5
C11.09761.38871.80942.2060
H21.09762.06472.38162.7320
F31.38872.06472.62982.9736
Cl41.80942.38162.62983.3245
I52.20602.73202.97363.3245

picture of fluorochloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 111.757 H2 C1 Cl4 107.480
H2 C1 I5 106.714 F3 C1 Cl4 109.935
F3 C1 I5 109.525 Cl4 C1 I5 111.392
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.184      
2 H 0.288      
3 F -0.203      
4 Cl 0.022      
5 I 0.077      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.257 0.124 1.244 1.276
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.922 0.715 2.090
y 0.715 -52.997 1.328
z 2.090 1.328 -50.378
Traceless
 xyz
x 0.766 0.715 2.090
y 0.715 -2.348 1.328
z 2.090 1.328 1.582
Polar
3z2-r23.163
x2-y22.076
xy0.715
xz2.090
yz1.328


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.190 -0.401 0.122
y -0.401 6.165 0.267
z 0.122 0.267 5.060


<r2> (average value of r2) Å2
<r2> 238.600
(<r2>)1/2 15.447