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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-7025.776044
Energy at 298.15K 
HF Energy-7025.535371
Nuclear repulsion energy211.312184
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' 3164 2979 20.13      
2 A' 1584 1491 2.15      
3 A' 1375 1294 100.30      
4 A' 1092 1028 126.83      
5 A' 565 531 42.02      
6 A' 261 245 0.56      
7 A" 3237 3047 11.57      
8 A" 1269 1194 1.42      
9 A" 908 854 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 6727.0 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 6332.1 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
1.21746 0.09010 0.08528

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 0.546 -1.524 0.000
F2 -0.614 -2.314 0.000
I3 0.000 0.630 0.000
H4 1.128 -1.700 0.900
H5 1.128 -1.700 -0.900

Atom - Atom Distances (Å)
  C1 F2 I3 H4 H5
C11.40352.22141.08631.0863
F21.40353.00672.05512.0551
I32.22143.00672.74002.7400
H41.08632.05512.74001.7999
H51.08632.05512.74001.7999

picture of fluoroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 I3 110.032 F2 C1 H4 110.613
F2 C1 H5 110.613 I3 C1 H4 106.778
I3 C1 H5 106.778 H4 C1 H5 111.877
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability