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

using model chemistry: CCSD(T)=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'
1 2 no C2V 2A1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at CCSD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-2611.685307
Energy at 298.15K-2611.688783
HF Energy-2611.372653
Nuclear repulsion energy80.089962
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 CCSD(T)=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' 3176 3085        
2 A' 1387 1347        
3 A' 705 684        
4 A' 62 60        
5 A" 3332 3236        
6 A" 919 893        

Unscaled Zero Point Vibrational Energy (zpe) 4790.0 cm-1
Scaled (by 0.9712) Zero Point Vibrational Energy (zpe) 4652.0 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 CCSD(T)=FULL/aug-cc-pVDZ
ABC
8.99232 0.37276 0.35796

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.002 1.496 0.000
Br2 -0.002 -0.371 0.000
H3 0.039 2.003 0.964
H4 0.039 2.003 -0.964

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86671.08971.0897
Br21.86672.56222.5622
H31.08972.56221.9274
H41.08972.56221.9274

picture of bromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 117.727 Br2 C1 H4 117.727
H3 C1 H4 124.351
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCSD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-2611.685306
Energy at 298.15K 
HF Energy-2611.372640
Nuclear repulsion energy80.080252
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 CCSD(T)=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 A1 3177 3085        
2 A1 1387 1347        
3 A1 704 684        
4 B1 89i 86i        
5 B2 3333 3237        
6 B2 918 892        

Unscaled Zero Point Vibrational Energy (zpe) 4714.9 cm-1
Scaled (by 0.9712) Zero Point Vibrational Energy (zpe) 4579.1 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 CCSD(T)=FULL/aug-cc-pVDZ
ABC
8.99838 0.37266 0.35784

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.496
Br2 0.000 0.000 0.371
H3 0.000 0.964 -2.004
H4 0.000 -0.964 -2.004

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86691.08961.0896
Br21.86692.56282.5628
H31.08962.56281.9281
H41.08962.56281.9281

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 117.771 Br2 C1 H4 117.771
H3 C1 H4 124.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability