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: B1B95/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/cc-pVTZ-PP
 hartrees
Energy at 0K-434.875244
Energy at 298.15K 
HF Energy-434.875244
Nuclear repulsion energy119.779628
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 B1B95/cc-pVTZ-PP
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' 3117 3117 10.66 117.88 0.08 0.15
2 A' 1494 1494 0.52 7.16 0.73 0.84
3 A' 1296 1296 54.04 3.56 0.12 0.22
4 A' 1115 1115 221.37 3.21 0.52 0.69
5 A' 580 580 42.81 25.47 0.21 0.35
6 A' 269 269 0.29 5.03 0.35 0.52
7 A" 3205 3205 2.31 58.63 0.75 0.86
8 A" 1252 1252 2.36 3.06 0.75 0.86
9 A" 867 867 0.60 1.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6597.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6597.7 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 B1B95/cc-pVTZ-PP
ABC
1.31082 0.09575 0.09081

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.519 -1.474 0.000
F2 -0.589 -2.246 0.000
I3 0.000 0.610 0.000
H4 1.093 -1.647 0.902
H5 1.093 -1.647 -0.902

Atom - Atom Distances (Å)
  C1 F2 I3 H4 H5
C11.35092.14781.08331.0833
F21.35092.91632.00062.0006
I32.14782.91632.66562.6656
H41.08332.00062.66561.8046
H51.08332.00062.66561.8046

picture of fluoroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 I3 110.865 F2 C1 H4 110.067
F2 C1 H5 110.067 I3 C1 H4 106.467
I3 C1 H5 106.467 H4 C1 H5 112.805
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.033      
2 F -0.180      
3 I -0.062      
4 H 0.104      
5 H 0.104      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.516 -0.549 0.000 1.612
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.075 -3.819 0.000
y -3.819 -37.472 0.000
z 0.000 0.000 -38.070
Traceless
 xyz
x -0.304 -3.819 0.000
y -3.819 0.601 0.000
z 0.000 0.000 -0.297
Polar
3z2-r2-0.593
x2-y2-0.603
xy-3.819
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.464 -0.511 0.000
y -0.511 8.281 0.000
z 0.000 0.000 5.231


<r2> (average value of r2) Å2
<r2> 105.579
(<r2>)1/2 10.275