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: MP4=FULL/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 MP4=FULL/Def2TZVPP
 hartrees
Energy at 0K-436.235115
Energy at 298.15K 
HF Energy-435.174627
Nuclear repulsion energy119.859227
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 MP4=FULL/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' 3109 3109        
2 A' 1494 1494        
3 A' 1308 1308        
4 A' 1074 1074        
5 A' 588 588        
6 A' 272 272        
7 A" 3195 3195        
8 A" 1249 1249        
9 A" 869 869        

Unscaled Zero Point Vibrational Energy (zpe) 6578.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6578.5 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 MP4=FULL/Def2TZVPP
ABC
1.29514 0.09636 0.09127

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.525 -1.458 0.000
F2 -0.594 -2.244 0.000
I3 0.000 0.608 0.000
H4 1.098 -1.640 0.901
H5 1.098 -1.640 -0.901

Atom - Atom Distances (Å)
  C1 F2 I3 H4 H5
C11.36732.13151.08321.0832
F21.36732.91302.00952.0095
I32.13152.91302.65892.6589
H41.08322.00952.65891.8027
H51.08322.00952.65891.8027

picture of fluoroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 I3 110.830 F2 C1 H4 109.626
F2 C1 H5 109.626 I3 C1 H4 107.043
I3 C1 H5 107.043 H4 C1 H5 112.629
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability