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

using model chemistry: CCD/TZVP

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 CCD/TZVP
 hartrees
Energy at 0K-2611.769455
Energy at 298.15K-2611.773298
HF Energy-2611.405932
Nuclear repulsion energy80.358388
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 CCD/TZVP
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' 3227 3059 6.68      
2 A' 1440 1365 26.22      
3 A' 704 667 18.94      
4 A' 293 277 67.39      
5 A" 3382 3206 0.02      
6 A" 961 911 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 5002.9 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 4742.7 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 CCD/TZVP
ABC
9.19506 0.37445 0.36019

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 1.494 0.000
Br2 -0.006 -0.370 0.000
H3 0.120 1.989 0.947
H4 0.120 1.989 -0.947

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86401.07581.0758
Br21.86402.54462.5446
H31.07582.54461.8942
H41.07582.54461.8942

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 117.358 Br2 C1 H4 117.358
H3 C1 H4 123.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-2611.769417
Energy at 298.15K 
HF Energy-2611.405818
Nuclear repulsion energy80.400818
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 CCD/TZVP
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 3234 3066 5.71      
2 A1 1440 1365 27.07      
3 A1 706 669 17.93      
4 B1 210i 199i 78.73      
5 B2 3392 3216 0.15      
6 B2 956 906 1.53      

Unscaled Zero Point Vibrational Energy (zpe) 4758.3 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 4510.9 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 CCD/TZVP
ABC
9.26355 0.37487 0.36029

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.492
Br2 0.000 0.000 0.370
H3 0.000 0.950 -1.995
H4 0.000 -0.950 -1.995

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86201.07511.0751
Br21.86202.54872.5487
H31.07512.54871.9003
H41.07512.54871.9003

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 117.892 Br2 C1 H4 117.892
H3 C1 H4 124.216
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability