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

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

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-2611.664515
Energy at 298.15K 
HF Energy-2611.372658
Nuclear repulsion energy80.114356
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/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 3189 3072 5.70      
2 A1 1400 1349 23.53      
3 A1 710 684 15.44      
4 B1 104i 100i 61.27      
5 B2 3345 3222 0.47      
6 B2 929 895 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 4734.4 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 4561.1 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/aug-cc-pVDZ
ABC
9.00781 0.37297 0.35814

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.495
Br2 0.000 0.000 0.371
H3 0.000 0.964 -2.003
H4 0.000 -0.964 -2.003

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86611.08901.0890
Br21.86612.56182.5618
H31.08902.56181.9271
H41.08902.56181.9271

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 117.775 Br2 C1 H4 117.775
H3 C1 H4 124.450
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability