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All results from a given calculation for CHBrF2 (Methane, bromodifluoro-)

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-2796.453826
Energy at 298.15K-2796.458672
HF Energy-2796.071440
Nuclear repulsion energy249.239872
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' 3170 3073 29.63      
2 A' 1329 1288 123.01      
3 A' 1105 1071 199.43      
4 A' 670 649 98.26      
5 A' 538 521 12.66      
6 A' 290 281 0.32      
7 A" 1424 1380 33.23      
8 A" 1201 1164 121.75      
9 A" 290 281 2.01      

Unscaled Zero Point Vibrational Energy (zpe) 5007.6 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 4853.4 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
0.31756 0.08926 0.07266

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 -0.438 -0.961 0.000
H2 -1.525 -1.003 0.000
Br3 0.078 0.998 0.000
F4 0.078 -1.566 1.125
F5 0.078 -1.566 -1.125

Atom - Atom Distances (Å)
  C1 H2 Br3 F4 F5
C11.08702.02611.37821.3782
H21.08702.56402.03782.0378
Br32.02612.56402.80012.8001
F41.37822.03782.80012.2507
F51.37822.03782.80012.2507

picture of Methane, bromodifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 106.997 H2 C1 F4 110.958
H2 C1 F5 110.958 Br3 C1 F4 109.196
Br3 C1 F5 109.196 F4 C1 F5 109.476
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability