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All results from a given calculation for CH2FI (fluoroiodomethane)

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-436.749714
Energy at 298.15K 
HF Energy-436.749714
Nuclear repulsion energy118.364227
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 PBEPBE/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' 3016 2980 10.05 127.79 0.08 0.15
2 A' 1431 1414 0.48 7.87 0.71 0.83
3 A' 1238 1223 43.40 2.73 0.14 0.25
4 A' 1039 1027 217.85 2.13 0.67 0.80
5 A' 546 539 45.49 20.35 0.22 0.37
6 A' 257 254 0.11 5.59 0.37 0.54
7 A" 3102 3064 2.58 61.88 0.75 0.86
8 A" 1196 1181 1.75 3.39 0.75 0.86
9 A" 831 821 0.94 1.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6328.2 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 6251.6 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 PBEPBE/Def2TZVPP
ABC
1.28754 0.09336 0.08859

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.524 -1.488 0.000
F2 -0.594 -2.278 0.000
I3 0.000 0.618 0.000
H4 1.102 -1.659 0.914
H5 1.102 -1.659 -0.914

Atom - Atom Distances (Å)
  C1 F2 I3 H4 H5
C11.36952.16981.09481.0948
F21.36952.95582.02372.0237
I32.16982.95582.68952.6895
H41.09482.02372.68951.8284
H51.09482.02372.68951.8284

picture of fluoroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 I3 111.238 F2 C1 H4 109.917
F2 C1 H5 109.917 I3 C1 H4 106.217
I3 C1 H5 106.217 H4 C1 H5 113.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.073      
2 F -0.157      
3 I -0.070      
4 H 0.150      
5 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.458 -0.546 0.000 1.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.293 -3.743 0.000
y -3.743 -37.526 0.000
z 0.000 0.000 -38.302
Traceless
 xyz
x -0.379 -3.743 0.000
y -3.743 0.772 0.000
z 0.000 0.000 -0.393
Polar
3z2-r2-0.786
x2-y2-0.767
xy-3.743
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.692 -0.547 0.000
y -0.547 8.944 0.000
z 0.000 0.000 5.416


<r2> (average value of r2) Å2
<r2> 107.701
(<r2>)1/2 10.378