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

using model chemistry: TPSSh/6-311+G(3df,2p)

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 TPSSh/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at TPSSh/6-311+G(3df,2p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311+G(3df,2p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at TPSSh/6-311+G(3df,2p)
 hartrees
Energy at 0K-2613.296593
Energy at 298.15K 
HF Energy-2613.296593
Nuclear repulsion energy80.717977
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 TPSSh/6-311+G(3df,2p)
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 3161 3161 4.56 115.93 0.08 0.16
2 A1 1386 1386 18.80 1.11 0.24 0.39
3 A1 704 704 17.49 11.28 0.10 0.18
4 B1 72i 72i 64.60 1.18 0.75 0.86
5 B2 3319 3319 0.57 55.26 0.75 0.86
6 B2 925 925 0.84 0.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4711.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4711.6 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 TPSSh/6-311+G(3df,2p)
ABC
9.18263 0.37842 0.36344

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.485
Br2 0.000 0.000 0.368
H3 0.000 0.954 -1.985
H4 0.000 -0.954 -1.985

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85341.07731.0773
Br21.85342.53942.5394
H31.07732.53941.9087
H41.07732.53941.9087

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 117.646 Br2 C1 H4 117.646
H3 C1 H4 124.708
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.194      
2 Br -0.067      
3 H 0.131      
4 H 0.131      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.042 1.042
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.292 0.000 0.000
y 0.000 4.436 0.000
z 0.000 0.000 6.661


<r2> (average value of r2) Å2
<r2> 42.824
(<r2>)1/2 6.544