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All results from a given calculation for CHFClI (fluorochloroiodomethane)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/3-21G
 hartrees
Energy at 0K-7485.371298
Energy at 298.15K 
HF Energy-7485.371298
Nuclear repulsion energy397.571813
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/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 3091 3063 5.25 99.80 0.27 0.43
2 A 1275 1263 18.27 7.91 0.75 0.85
3 A 1149 1138 90.77 7.24 0.71 0.83
4 A 1102 1092 156.03 1.82 0.48 0.64
5 A 612 607 250.61 7.22 0.39 0.56
6 A 553 548 43.07 12.76 0.29 0.45
7 A 342 339 4.53 8.30 0.31 0.48
8 A 252 249 1.40 5.55 0.63 0.78
9 A 172 170 0.25 10.82 0.53 0.70

Unscaled Zero Point Vibrational Energy (zpe) 4273.2 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 4234.3 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/3-21G
ABC
0.18878 0.04489 0.03717

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.992 0.548 0.434
H2 1.094 0.630 1.522
F3 1.292 1.720 -0.222
Cl4 2.265 -0.790 -0.070
I5 -1.079 -0.113 -0.018

Atom - Atom Distances (Å)
  C1 H2 F3 Cl4 I5
C11.09631.37581.91482.2200
H21.09632.06602.43332.7652
F31.37582.06602.69603.0041
Cl41.91482.43332.69603.4126
I52.22002.76523.00413.4126

picture of fluorochloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 112.896 H2 C1 Cl4 104.518
H2 C1 I5 108.148 F3 C1 Cl4 108.929
F3 C1 I5 111.143 Cl4 C1 I5 111.035
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.325      
2 H 0.305      
3 F -0.185      
4 Cl 0.007      
5 I 0.199      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.790 0.609 1.469 1.775
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.261 1.678 2.071
y 1.678 -53.232 1.262
z 2.071 1.262 -50.588
Traceless
 xyz
x -1.351 1.678 2.071
y 1.678 -1.307 1.262
z 2.071 1.262 2.659
Polar
3z2-r25.317
x2-y2-0.029
xy1.678
xz2.071
yz1.262


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.773 -0.326 0.236
y -0.326 4.697 0.410
z 0.236 0.410 3.152


<r2> (average value of r2) Å2
<r2> 247.875
(<r2>)1/2 15.744