return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-2810.889494
Energy at 298.15K 
HF Energy-2809.874762
Nuclear repulsion energy260.516542
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 MP2=FULL/aug-cc-pVTZ
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' 3210 3054 5.37 79.56 0.20 0.34
2 A' 1337 1272 78.92 4.06 0.10 0.18
3 A' 1129 1074 252.18 1.18 0.75 0.85
4 A' 751 715 109.02 12.97 0.11 0.20
5 A' 587 559 4.64 2.08 0.17 0.29
6 A' 337 320 0.08 4.33 0.23 0.37
7 A" 1390 1322 8.55 2.36 0.75 0.86
8 A" 1152 1096 205.70 1.69 0.75 0.86
9 A" 323 308 0.10 0.97 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5108.4 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 4860.1 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 MP2=FULL/aug-cc-pVTZ
ABC
0.34166 0.09824 0.07972

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.423 -0.891 0.000
H2 -1.501 -0.964 0.000
Br3 0.076 0.950 0.000
F4 0.076 -1.497 1.084
F5 0.076 -1.497 -1.084

Atom - Atom Distances (Å)
  C1 H2 Br3 F4 F5
C11.08041.90811.33781.3378
H21.08042.48061.98611.9861
Br31.90812.48062.67612.6761
F41.33781.98612.67612.1670
F51.33781.98612.67612.1670

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 109.045 H2 C1 F4 109.982
H2 C1 F5 109.982 Br3 C1 F4 109.822
Br3 C1 F5 109.822 F4 C1 F5 108.176
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability