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

using model chemistry: CCSD(T)/Def2TZVPP

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 CCSD(T)/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/Def2TZVPP
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/Def2TZVPP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCSD(T)/Def2TZVPP
 hartrees
Energy at 0K-2611.872251
Energy at 298.15K 
HF Energy-2611.412763
Nuclear repulsion energy80.871532
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)/Def2TZVPP
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 3193 3193        
2 A1 1408 1408        
3 A1 722 722        
4 B1 92 92        
5 B2 3345 3345        
6 B2 935 935        

Unscaled Zero Point Vibrational Energy (zpe) 4847.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4847.6 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)/Def2TZVPP
ABC
9.25434 0.37977 0.36480

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.482
Br2 0.000 0.000 0.367
H3 0.000 0.951 -1.985
H4 0.000 -0.951 -1.985

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.84931.07561.0756
Br21.84932.53742.5374
H31.07562.53741.9013
H41.07562.53741.9013

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 117.896 Br2 C1 H4 117.896
H3 C1 H4 124.209
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability