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All results from a given calculation for CHBr2 (dibromomethyl radical)

using model chemistry: B2PLYP=FULLultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B2PLYP=FULLultrafine/Def2TZVPP
 hartrees
Energy at 0K-5186.214089
Energy at 298.15K 
HF Energy-5185.941257
Nuclear repulsion energy338.195275
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 B2PLYP=FULLultrafine/Def2TZVPP
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' 3246 3246 0.84 94.47 0.23 0.38
2 A' 628 628 6.27 4.69 0.17 0.29
3 A' 409 409 23.79 9.48 0.08 0.15
4 A' 187 187 0.11 3.18 0.47 0.64
5 A" 1198 1198 59.22 0.32 0.75 0.86
6 A" 784 784 121.03 1.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3226.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3226.5 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 B2PLYP=FULLultrafine/Def2TZVPP
ABC
1.29394 0.04104 0.03981

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.006 0.825 0.000
H2 -0.453 1.798 0.000
Br3 0.006 -0.096 1.613
Br4 0.006 -0.096 -1.613

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4
C11.07571.85751.8575
H21.07572.52982.5298
Br31.85752.52983.2259
Br41.85752.52983.2259

picture of dibromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 116.650 H2 C1 Br4 116.650
Br3 C1 Br4 120.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability