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All results from a given calculation for CH2FI (fluoroiodomethane)

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-41.667310
Energy at 298.15K 
HF Energy-41.667310
Nuclear repulsion energy36.831203
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/CEP-121G
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' 3281 2994 25.73 128.87 0.10 0.17
2 A' 1592 1453 0.55 20.79 0.56 0.71
3 A' 1432 1306 116.70 6.08 0.23 0.38
4 A' 1088 992 237.92 8.85 0.70 0.83
5 A' 603 550 54.54 51.44 0.39 0.56
6 A' 281 256 1.47 9.38 0.53 0.69
7 A" 3396 3098 8.39 69.59 0.75 0.86
8 A" 1321 1206 7.92 19.44 0.75 0.86
9 A" 952 869 1.16 13.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6972.1 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 6362.0 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 HF/CEP-121G
ABC
1.23714 0.09398 0.08885

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.547 -1.474 0.000
F2 -0.610 -2.272 0.000
I3 0.000 0.616 0.000
H4 1.102 -1.677 0.899
H5 1.102 -1.677 -0.899

Atom - Atom Distances (Å)
  C1 F2 I3 H4 H5
C11.40462.16041.07591.0759
F21.40462.95102.02292.0229
I32.16042.95102.69782.6978
H41.07592.02292.69781.7978
H51.07592.02292.69781.7978

picture of fluoroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 I3 109.923 F2 C1 H4 108.554
F2 C1 H5 108.554 I3 C1 H4 108.220
I3 C1 H5 108.220 H4 C1 H5 113.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.297      
2 F -0.307      
3 I 0.190      
4 H 0.207      
5 H 0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.515 0.068 0.000 2.516
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.994 -5.582 0.000
y -5.582 -33.183 0.000
z 0.000 0.000 -31.653
Traceless
 xyz
x 0.424 -5.582 0.000
y -5.582 -1.359 0.000
z 0.000 0.000 0.936
Polar
3z2-r21.871
x2-y21.189
xy-5.582
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.432 -0.998 0.000
y -0.998 7.199 0.000
z 0.000 0.000 2.126


<r2> (average value of r2) Å2
<r2> 81.091
(<r2>)1/2 9.005