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: HSEh1PBE/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 HSEh1PBE/3-21G
 hartrees
Energy at 0K-7485.509630
Energy at 298.15K 
HF Energy-7485.509630
Nuclear repulsion energy402.657407
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 HSEh1PBE/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 3196 3079 3.24 94.91 0.26 0.42
2 A 1326 1277 17.87 7.62 0.75 0.86
3 A 1209 1165 101.51 7.82 0.68 0.81
4 A 1134 1092 154.61 2.46 0.75 0.86
5 A 665 640 238.97 9.86 0.58 0.73
6 A 580 559 32.21 15.96 0.25 0.40
7 A 360 347 3.48 7.95 0.33 0.49
8 A 266 256 0.24 5.54 0.61 0.76
9 A 183 176 0.43 9.69 0.55 0.71

Unscaled Zero Point Vibrational Energy (zpe) 4459.2 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 4295.5 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 HSEh1PBE/3-21G
ABC
0.19444 0.04600 0.03815

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.979 0.530 0.434
H2 1.085 0.625 1.511
F3 1.277 1.696 -0.220
Cl4 2.237 -0.777 -0.070
I5 -1.066 -0.111 -0.018

Atom - Atom Distances (Å)
  C1 H2 F3 Cl4 I5
C11.08671.36951.88242.1903
H21.08672.04442.40662.7398
F31.36952.04442.65702.9658
Cl41.88242.40662.65703.3699
I52.19032.73982.96583.3699

picture of fluorochloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 112.170 H2 C1 Cl4 105.124
H2 C1 I5 108.721 F3 C1 Cl4 108.549
F3 C1 I5 110.721 Cl4 C1 I5 111.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.337      
2 H 0.317      
3 F -0.236      
4 Cl 0.024      
5 I 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.916 0.335 1.565 1.844
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.331 1.286 2.207
y 1.286 -53.833 1.380
z 2.207 1.380 -50.567
Traceless
 xyz
x -1.131 1.286 2.207
y 1.286 -1.884 1.380
z 2.207 1.380 3.014
Polar
3z2-r26.029
x2-y20.502
xy1.286
xz2.207
yz1.380


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.224 -0.334 0.233
y -0.334 4.440 0.414
z 0.233 0.414 3.080


<r2> (average value of r2) Å2
<r2> 242.575
(<r2>)1/2 15.575