return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for CHFClI (fluorochloroiodomethane)

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-895.199992
Energy at 298.15K 
HF Energy-894.095635
Nuclear repulsion energy246.279850
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 MP2/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at MP2/Def2TZVPP
ABC
0.21004 0.04975 0.04126

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.976 0.469 0.416
H2 1.046 0.608 1.487
F3 1.256 1.635 -0.209
Cl4 2.132 -0.754 -0.071
I5 -1.027 -0.100 -0.017

Atom - Atom Distances (Å)
  C1 H2 F3 Cl4 I5
C11.08261.35191.75262.1271
H21.08261.99392.33682.6580
F31.35191.99392.54872.8746
Cl41.75262.33682.54873.2271
I52.12712.65802.87463.2271

picture of fluorochloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 109.478 H2 C1 Cl4 108.711
H2 C1 I5 107.287 F3 C1 Cl4 109.689
F3 C1 I5 109.406 Cl4 C1 I5 112.209
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability