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All results from a given calculation for CHFClBr (fluorochlorobromomethane)

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-3167.809000
Energy at 298.15K-3167.813697
HF Energy-3167.233303
Nuclear repulsion energy320.588279
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/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 3209 3056 5.06      
2 A 1374 1308 23.02      
3 A 1278 1217 80.90      
4 A 1143 1088 166.75      
5 A 822 783 172.74      
6 A 668 636 56.43      
7 A 430 410 1.70      
8 A 315 300 0.18      
9 A 233 222 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 4735.4 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 4509.5 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/6-31G*
ABC
0.21406 0.06664 0.05251

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.582 0.456 0.419
Br2 -1.208 -0.184 -0.029
Cl3 1.828 -0.688 -0.069
F4 0.786 1.644 -0.205
H5 0.618 0.594 1.498

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.95241.76051.35781.0883
Br21.95243.07742.71082.5041
Cl31.76053.07742.55752.3586
F41.35782.71082.55752.0077
H51.08832.50412.35862.0077

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 111.857 Br2 C1 F4 108.627
Br2 C1 H5 107.450 Cl3 C1 F4 109.527
Cl3 C1 H5 109.502 F4 C1 H5 109.842
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability