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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-10042.717553
Energy at 298.15K 
HF Energy-10042.090467
Nuclear repulsion energy895.720616
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 1087 1045 81.69      
2 A 757 727 158.16      
3 A 735 707 186.39      
4 A 427 410 0.97      
5 A 311 299 0.37      
6 A 263 253 0.76      
7 A 245 235 0.36      
8 A 179 172 0.02      
9 A 136 130 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 2069.7 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 1989.1 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
0.05812 0.02533 0.02063

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 0.456 0.482 0.352
F2 0.550 0.721 1.721
Cl3 0.775 2.020 -0.509
Br4 1.790 -0.852 -0.143
I5 -1.576 -0.262 -0.074

Atom - Atom Distances (Å)
  C1 F2 Cl3 Br4 I5
C11.39321.79081.95092.2052
F21.39322.59082.73652.9506
Cl31.79082.59083.06813.3048
Br41.95092.73653.06813.4180
I52.20522.95063.30483.4180

picture of fluorochlorobromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Cl3 108.274 F2 C1 Br4 108.683
F2 C1 I5 108.036 Cl3 C1 Br4 110.090
Cl3 C1 I5 111.170 Br4 C1 I5 110.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability