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All results from a given calculation for CHFClI (fluorochloroiodomethane)

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-7485.788714
Energy at 298.15K 
HF Energy-7485.788714
Nuclear repulsion energy410.197188
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 3176 3050 2.16 81.16 0.28 0.44
2 A 1335 1282 8.85 7.43 0.75 0.86
3 A 1237 1188 82.51 6.68 0.45 0.62
4 A 1107 1063 119.46 2.20 0.70 0.82
5 A 721 693 210.78 5.30 0.75 0.85
6 A 599 575 42.11 16.21 0.16 0.28
7 A 391 375 1.04 4.83 0.31 0.47
8 A 260 249 0.21 4.40 0.43 0.61
9 A 192 185 0.05 6.09 0.47 0.64

Unscaled Zero Point Vibrational Energy (zpe) 4508.3 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 4329.8 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 PBE1PBE/3-21G
ABC
0.20196 0.04794 0.03976

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 1.002 0.478 0.430
H2 1.076 0.591 1.510
F3 1.292 1.665 -0.213
Cl4 2.165 -0.773 -0.074
I5 -1.047 -0.100 -0.017

Atom - Atom Distances (Å)
  C1 H2 F3 Cl4 I5
C11.08821.38091.78052.1760
H21.08822.04192.35612.7057
F31.38092.04192.59292.9375
Cl41.78052.35612.59293.2822
I52.17602.70572.93753.2822

picture of fluorochloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 111.027 H2 C1 Cl4 107.991
H2 C1 I5 107.219 F3 C1 Cl4 109.561
F3 C1 I5 109.309 Cl4 C1 I5 111.719
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 -0.173      
2 H 0.302      
3 F -0.254      
4 Cl 0.029      
5 I 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.398 -0.117 1.321 1.384
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.867 0.340 2.218
y 0.340 -53.511 1.459
z 2.218 1.459 -50.342
Traceless
 xyz
x 1.060 0.340 2.218
y 0.340 -2.906 1.459
z 2.218 1.459 1.847
Polar
3z2-r23.693
x2-y22.644
xy0.340
xz2.218
yz1.459


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.612 -0.382 0.120
y -0.382 5.906 0.262
z 0.120 0.262 4.964


<r2> (average value of r2) Å2
<r2> 233.489
(<r2>)1/2 15.280