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All results from a given calculation for CHBr2F (dibromofluoromethane)

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 CS 1A'
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-5257.520741
Energy at 298.15K 
HF Energy-5257.211060
Nuclear repulsion energy463.246863
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' 3183 3085 8.31      
2 A' 1335 1294 18.97      
3 A' 1102 1068 115.50      
4 A' 575 557 22.90      
5 A' 320 310 1.47      
6 A' 160 155 0.10      
7 A" 1215 1177 93.17      
8 A" 679 658 149.73      
9 A" 274 265 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 4420.9 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 4284.7 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
0.17244 0.03756 0.03149

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.106 0.813 0.000
H2 -1.026 1.392 0.000
F3 1.010 1.644 0.000
Br4 -0.106 -0.301 1.676
Br5 -0.106 -0.301 -1.676

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.08651.39182.01222.0122
H21.08652.05142.55332.5533
F31.39182.05142.79952.7995
Br42.01222.55332.79953.3514
Br52.01222.55332.79953.3514

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 111.138 H2 C1 Br4 107.158
H2 C1 Br5 107.158 F3 C1 Br4 109.302
F3 C1 Br5 109.302 Br4 C1 Br5 112.770
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability