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All results from a given calculation for CHFClBr (fluorochlorobromomethane)

using model chemistry: CID/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-3154.737639
Energy at 298.15K-3154.742191
HF Energy-3154.451877
Nuclear repulsion energy310.732005
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 CID/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 3277 3053 4.60      
2 A 1373 1279 24.35      
3 A 1270 1183 87.27      
4 A 1154 1075 129.24      
5 A 722 672 185.75      
6 A 630 586 35.17      
7 A 372 347 3.07      
8 A 300 279 0.30      
9 A 212 197 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 4654.0 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 4335.6 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 CID/3-21G
ABC
0.20045 0.06235 0.04909

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.550 0.504 0.433
Br2 -1.241 -0.203 -0.030
Cl3 1.917 -0.696 -0.068
F4 0.771 1.701 -0.212
H5 0.622 0.608 1.505

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.98091.88621.37641.0798
Br21.98093.19632.77612.5473
Cl31.88623.19632.65992.4184
F41.37642.77612.65992.0400
H51.07982.54732.41842.0400

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 111.463 Br2 C1 F4 110.258
Br2 C1 H5 109.080 Cl3 C1 F4 108.215
Cl3 C1 H5 106.027 F4 C1 H5 111.741
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability