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All results from a given calculation for CH2FI (fluoroiodomethane)

using model chemistry: CISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/3-21G*
 hartrees
Energy at 0K-7025.916459
Energy at 298.15K 
HF Energy-7025.605969
Nuclear repulsion energy212.908382
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 CISD/3-21G*
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' 3176 2968 14.23      
2 A' 1594 1489 1.10      
3 A' 1381 1291 94.68      
4 A' 1103 1031 113.55      
5 A' 584 546 44.13      
6 A' 260 243 0.76      
7 A" 3250 3037 5.78      
8 A" 1277 1193 1.63      
9 A" 918 857 0.48      

Unscaled Zero Point Vibrational Energy (zpe) 6771.2 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 6327.0 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 CISD/3-21G*
ABC
1.22747 0.09153 0.08661

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.543 -1.506 0.000
F2 -0.612 -2.299 0.000
I3 0.000 0.624 0.000
H4 1.124 -1.678 0.901
H5 1.124 -1.678 -0.901

Atom - Atom Distances (Å)
  C1 F2 I3 H4 H5
C11.40112.19821.08551.0855
F21.40112.98642.05202.0520
I32.19822.98642.71592.7159
H41.08552.05202.71591.8011
H51.08552.05202.71591.8011

picture of fluoroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 I3 110.164 F2 C1 H4 110.575
F2 C1 H5 110.575 I3 C1 H4 106.628
I3 C1 H5 106.628 H4 C1 H5 112.115
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability