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 CHFClBr (fluorochlorobromomethane)

using model chemistry: MP2=FULL/aug-cc-pVTZ

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=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-3170.883827
Energy at 298.15K-3170.888571
HF Energy-3169.906137
Nuclear repulsion energy325.177408
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=FULL/aug-cc-pVTZ
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 3220 3064 0.08 70.43 0.19 0.31
2 A 1347 1282 10.67 3.27 0.47 0.64
3 A 1259 1198 59.74 2.02 0.36 0.53
4 A 1103 1049 171.24 2.18 0.69 0.82
5 A 820 781 180.96 3.25 0.66 0.79
6 A 693 659 39.01 12.66 0.07 0.12
7 A 437 416 0.64 4.16 0.14 0.24
8 A 325 309 0.21 2.17 0.42 0.59
9 A 233 221 0.00 2.48 0.39 0.56

Unscaled Zero Point Vibrational Energy (zpe) 4718.3 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 4488.9 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=FULL/aug-cc-pVTZ
ABC
0.21715 0.06895 0.05407

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.558 0.453 0.411
Br2 -1.186 -0.185 -0.028
Cl3 1.802 -0.680 -0.067
F4 0.767 1.635 -0.200
H5 0.602 0.588 1.479

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.90761.74971.34721.0780
Br21.90763.02902.67502.4632
Cl31.74973.02902.53942.3327
F41.34722.67502.53941.9862
H51.07802.46322.33271.9862

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 111.754 Br2 C1 F4 109.338
Br2 C1 H5 107.928 Cl3 C1 F4 109.481
Cl3 C1 H5 108.837 F4 C1 H5 109.465
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability