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

using model chemistry: MP4/cc-pVDZ

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 MP4/cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at MP4/cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP4/cc-pVDZ
 hartrees
Energy at 0K-2611.647533
Energy at 298.15K 
HF Energy-2611.367653
Nuclear repulsion energy80.181469
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 MP4/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 A1 3202 3096        
2 A1 1395 1349        
3 A1 718 694        
4 B1 263i 254i        
5 B2 3359 3247        
6 B2 924 893        

Unscaled Zero Point Vibrational Energy (zpe) 4667.0 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 4512.5 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 MP4/cc-pVDZ
ABC
9.01395 0.37370 0.35883

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.493
Br2 0.000 0.000 0.371
H3 0.000 0.963 -2.007
H4 0.000 -0.963 -2.007

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86301.09181.0918
Br21.86302.56482.5648
H31.09182.56481.9265
H41.09182.56481.9265

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 118.087 Br2 C1 H4 118.087
H3 C1 H4 123.826
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability