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 CHFCl (Chlorofluoromethyl radical)

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-597.720454
Energy at 298.15K 
HF Energy-597.307570
Nuclear repulsion energy93.310787
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 MP2/6-31G**
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 3280 3072 16.91 90.35 0.26 0.41
2 A 1369 1282 70.91 5.80 0.71 0.83
3 A 1209 1132 172.37 3.07 0.48 0.65
4 A 913 855 41.71 5.14 0.68 0.81
5 A 815 763 49.11 8.77 0.17 0.29
6 A 413 387 1.72 3.01 0.65 0.79

Unscaled Zero Point Vibrational Energy (zpe) 3999.7 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 3745.7 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 MP2/6-31G**
ABC
1.92241 0.19557 0.17877

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.536 0.553 -0.135
H2 0.709 1.493 0.370
F3 1.525 -0.340 0.027
Cl4 -1.038 -0.103 0.011

Atom - Atom Distances (Å)
  C1 H2 F3 Cl4
C11.08171.34161.7122
H21.08172.03542.3941
F31.34162.03542.5741
Cl41.71222.39412.5741

picture of Chlorofluoromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 113.837 H2 C1 Cl4 116.110
F3 C1 Cl4 114.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability