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 CH2FI (fluoroiodomethane)

using model chemistry: B2PLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-311G**
 hartrees
Energy at 0K-7057.912986
Energy at 298.15K 
HF Energy-7057.732002
Nuclear repulsion energy215.351365
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 B2PLYP/6-311G**
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' 3125 3125 14.12 110.11 0.09 0.16
2 A' 1508 1508 0.64 10.09 0.71 0.83
3 A' 1318 1318 82.59 3.32 0.27 0.43
4 A' 1088 1088 219.55 3.67 0.69 0.82
5 A' 561 561 50.51 25.95 0.29 0.45
6 A' 266 266 0.26 6.51 0.41 0.58
7 A" 3213 3213 4.73 62.22 0.75 0.86
8 A" 1262 1262 2.91 5.81 0.75 0.86
9 A" 877 877 0.67 2.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6608.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6608.6 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 B2PLYP/6-311G**
ABC
1.29230 0.09326 0.08849

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.524 -1.497 0.000
F2 -0.593 -2.274 0.000
I3 0.000 0.619 0.000
H4 1.098 -1.672 0.905
H5 1.098 -1.672 -0.905

Atom - Atom Distances (Å)
  C1 F2 I3 H4 H5
C11.36172.17921.08581.0858
F21.36172.95332.01062.0106
I32.17922.95332.69672.6967
H41.08582.01062.69671.8100
H51.08582.01062.69671.8100

picture of fluoroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 I3 110.912 F2 C1 H4 109.956
F2 C1 H5 109.956 I3 C1 H4 106.503
I3 C1 H5 106.503 H4 C1 H5 112.919
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.049      
2 F -0.227      
3 I -0.022      
4 H 0.149      
5 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.698 -0.626 0.000 1.809
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.912 -4.053 -0.007
y -4.053 -39.297 0.006
z -0.007 0.006 -39.954
Traceless
 xyz
x -0.286 -4.053 -0.007
y -4.053 0.636 0.006
z -0.007 0.006 -0.349
Polar
3z2-r2-0.699
x2-y2-0.614
xy-4.053
xz-0.007
yz0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.368 -0.634 0.001
y -0.634 7.660 -0.000
z 0.001 -0.000 4.100


<r2> (average value of r2) Å2
<r2> 119.549
(<r2>)1/2 10.934