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

using model chemistry: B2PLYP=FULL/aug-cc-pVDZ

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=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-5186.020429
Energy at 298.15K 
HF Energy-5185.878284
Nuclear repulsion energy336.303954
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=FULL/aug-cc-pVDZ
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' 3233 3110 1.00 97.27 0.21 0.35
2 A' 631 607 8.45 5.11 0.11 0.20
3 A' 460 443 18.87 13.37 0.11 0.19
4 A' 186 179 0.05 3.01 0.40 0.57
5 A" 1177 1132 57.49 0.10 0.75 0.86
6 A" 766 737 131.28 1.31 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3226.8 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 3103.5 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=FULL/aug-cc-pVDZ
ABC
1.25033 0.04071 0.03946

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.007 0.843 0.000
H2 -0.525 1.792 0.000
Br3 0.007 -0.098 1.619
Br4 0.007 -0.098 -1.619

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4
C11.08861.87271.8727
H21.08862.54532.5453
Br31.87272.54533.2387
Br41.87272.54533.2387

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 115.985 H2 C1 Br4 115.985
Br3 C1 Br4 119.700
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability