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All results from a given calculation for CBr3 (tribromomethyl radical)

using model chemistry: B2PLYP=FULLultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B2PLYP=FULLultrafine/6-31G*
 hartrees
Energy at 0K-7751.691213
Energy at 298.15K 
HF Energy-7751.511503
Nuclear repulsion energy783.001126
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 355 337 0.75 15.44 0.04 0.07
2 A1 243 230 0.35 2.95 0.21 0.34
3 E 750 711 146.57 0.82 0.75 0.86
3 E 750 711 146.58 0.82 0.75 0.86
4 E 164 155 0.01 2.79 0.75 0.86
4 E 164 155 0.01 2.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1212.1 cm-1
Scaled (by 0.9487) Zero Point Vibrational Energy (zpe) 1150.0 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/6-31G*
ABC
0.04138 0.04138 0.02077

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.350
Br2 0.000 1.851 -0.020
Br3 1.603 -0.926 -0.020
Br4 -1.603 -0.926 -0.020

Atom - Atom Distances (Å)
  C1 Br2 Br3 Br4
C11.88801.88801.8880
Br21.88803.20693.2069
Br31.88803.20693.2069
Br41.88803.20693.2069

picture of tribromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 116.264 Br2 C1 Br4 116.264
Br3 C1 Br4 116.264
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability