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All results from a given calculation for CH2Br (bromomethyl radical)

using model chemistry: MP3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 2A1

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at MP3/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at MP3/6-311+G(3df,2p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-311+G(3df,2p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP3/6-311+G(3df,2p)
 hartrees
Energy at 0K-2611.705533
Energy at 298.15K 
HF Energy-2611.369683
Nuclear repulsion energy80.926048
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 MP3/6-311+G(3df,2p)
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 3231 3231 3.86      
2 A1 1427 1427 18.88      
3 A1 731 731 15.05      
4 B1 63i 63i 63.24      
5 B2 3385 3385 1.86      
6 B2 951 951 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 4831.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4831.4 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 MP3/6-311+G(3df,2p)
ABC
9.31639 0.38011 0.36521

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.481
Br2 0.000 0.000 0.367
H3 0.000 0.947 -1.986
H4 0.000 -0.947 -1.986

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.84811.07371.0737
Br21.84812.53682.5368
H31.07372.53681.8949
H41.07372.53681.8949

picture of bromomethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 118.062 Br2 C1 H4 118.062
H3 C1 H4 123.876
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability