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All results from a given calculation for CFClBrI (fluorochlorobromoiodomethane)

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-10042.047643
Energy at 298.15K 
HF Energy-10041.689266
Nuclear repulsion energy871.820141
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 QCISD/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 1094 1061 114.20      
2 A 712 690 176.94      
3 A 677 656 181.24      
4 A 371 360 3.18      
5 A 300 291 0.09      
6 A 267 259 0.61      
7 A 225 218 0.27      
8 A 166 161 0.36      
9 A 131 127 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 1971.4 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 1910.6 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 QCISD/3-21G
ABC
0.05521 0.02391 0.01937

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.425 0.436 0.376
F2 0.524 0.668 1.740
Cl3 0.748 2.126 -0.478
Br4 1.876 -0.848 -0.155
I5 -1.616 -0.285 -0.083

Atom - Atom Distances (Å)
  C1 F2 Cl3 Br4 I5
C11.38651.92132.00832.2125
F21.38652.66372.77752.9672
Cl31.92132.66373.19703.3995
Br42.00832.77753.19703.5373
I52.21252.96723.39953.5373

picture of fluorochlorobromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Cl3 106.140 F2 C1 Br4 108.408
F2 C1 I5 108.892 Cl3 C1 Br4 108.873
Cl3 C1 I5 110.445 Br4 C1 I5 113.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability