return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CHFClI (fluorochloroiodomethane)

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-7441.283167
Energy at 298.15K 
HF Energy-7441.283167
Nuclear repulsion energy408.747860
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/STO-3G
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 3582 2925 0.84 43.66 0.39 0.56
2 A 1528 1248 51.04 7.43 0.71 0.83
3 A 1416 1156 108.83 7.96 0.74 0.85
4 A 1345 1098 45.84 5.79 0.70 0.82
5 A 936 764 145.51 14.02 0.66 0.79
6 A 695 568 34.58 18.59 0.20 0.33
7 A 444 362 6.32 4.52 0.31 0.48
8 A 318 259 1.36 3.65 0.55 0.71
9 A 217 177 1.91 5.07 0.58 0.73

Unscaled Zero Point Vibrational Energy (zpe) 5240.4 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 4278.8 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 HF/STO-3G
ABC
0.20093 0.04734 0.03926

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.960 0.499 0.412
H2 1.070 0.610 1.504
F3 1.283 1.673 -0.209
Cl4 2.198 -0.769 -0.068
I5 -1.052 -0.106 -0.018

Atom - Atom Distances (Å)
  C1 H2 F3 Cl4 I5
C11.10281.36681.83592.1439
H21.10282.02662.37622.7068
F31.36682.02662.61152.9409
Cl41.83592.37622.61153.3171
I52.14392.70682.94093.3171

picture of fluorochloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 109.834 H2 C1 Cl4 105.169
H2 C1 I5 108.672 F3 C1 Cl4 108.368
F3 C1 I5 111.883 Cl4 C1 I5 112.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.057      
2 H 0.113      
3 F -0.102      
4 Cl -0.162      
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
  -0.774 1.021 1.297 1.823
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.916 1.767 1.543
y 1.767 -49.477 0.864
z 1.543 0.864 -46.721
Traceless
 xyz
x -3.817 1.767 1.543
y 1.767 -0.159 0.864
z 1.543 0.864 3.975
Polar
3z2-r27.950
x2-y2-2.439
xy1.767
xz1.543
yz0.864


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.347 -0.088 0.221
y -0.088 2.111 0.284
z 0.221 0.284 1.201


<r2> (average value of r2) Å2
<r2> 234.527
(<r2>)1/2 15.314