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: PBEPBEultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBEultrafine/Def2TZVPP
 hartrees
Energy at 0K-896.179918
Energy at 298.15K 
HF Energy-896.179918
Nuclear repulsion energy242.541317
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 PBEPBEultrafine/Def2TZVPP
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 3067 3067 0.66 86.10 0.24 0.39
2 A 1265 1265 7.98 3.88 0.67 0.80
3 A 1133 1133 68.64 4.32 0.21 0.35
4 A 1036 1036 199.36 1.69 0.68 0.81
5 A 726 726 196.10 4.12 0.74 0.85
6 A 561 561 57.54 14.86 0.15 0.26
7 A 402 402 0.27 4.16 0.25 0.40
8 A 257 257 0.30 4.81 0.36 0.53
9 A 182 182 0.07 6.25 0.42 0.59

Unscaled Zero Point Vibrational Energy (zpe) 4314.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4314.0 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 PBEPBEultrafine/Def2TZVPP
ABC
0.20649 0.04777 0.03978

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.008 0.475 0.416
H2 1.069 0.609 1.500
F3 1.288 1.647 -0.210
Cl4 2.171 -0.764 -0.071
I5 -1.049 -0.100 -0.017

Atom - Atom Distances (Å)
  C1 H2 F3 Cl4 I5
C11.09381.35821.76792.1799
H21.09382.01262.36012.7003
F31.35822.01262.57142.9248
Cl41.76792.36012.57143.2888
I52.17992.70032.92483.2888

picture of fluorochloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 109.861 H2 C1 Cl4 108.830
H2 C1 I5 106.364 F3 C1 Cl4 109.989
F3 C1 I5 109.307 Cl4 C1 I5 112.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.048      
2 H 0.160      
3 F -0.116      
4 Cl -0.059      
5 I -0.033      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.020 -0.084 1.064 1.067
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -49.080 0.123 1.740
y 0.123 -51.612 1.345
z 1.740 1.345 -49.141
Traceless
 xyz
x 1.297 0.123 1.740
y 0.123 -2.502 1.345
z 1.740 1.345 1.205
Polar
3z2-r22.410
x2-y22.532
xy0.123
xz1.740
yz1.345


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.836 -0.244 0.173
y -0.244 7.481 0.246
z 0.173 0.246 6.476


<r2> (average value of r2) Å2
<r2> 201.138
(<r2>)1/2 14.182