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

using model chemistry: B3LYP/cc-pVTZ-PP

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 B3LYP/cc-pVTZ-PP
Rotational Constants (cm-1) from geometry optimized at B3LYP/cc-pVTZ-PP
See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ-PP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3LYP/cc-pVTZ-PP
 hartrees
Energy at 0K-456.180240
Energy at 298.15K 
HF Energy-456.180240
Nuclear repulsion energy59.267338
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 B3LYP/cc-pVTZ-PP
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 3169 3169 4.56 119.32 0.11 0.20
2 A1 1378 1378 19.83 0.67 0.54 0.70
3 A1 694 694 17.13 11.03 0.18 0.31
4 B1 100 100 68.66 0.01 0.75 0.86
5 B2 3326 3326 0.44 55.52 0.75 0.86
6 B2 922 922 1.29 2.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4794.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4794.4 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 B3LYP/cc-pVTZ-PP
ABC
9.21475 0.37605 0.36130

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ-PP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.490
Br2 0.000 0.000 0.369
H3 0.000 0.953 -1.989
H4 0.000 -0.953 -1.989

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85971.07541.0754
Br21.85972.54372.5437
H31.07542.54371.9054
H41.07542.54371.9054

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 117.638 Br2 C1 H4 117.638
H3 C1 H4 124.724
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.291      
2 Br 0.014      
3 H 0.138      
4 H 0.138      


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 -0.887 0.887
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.111 0.000 0.000
y 0.000 -24.159 0.000
z 0.000 0.000 -21.736
Traceless
 xyz
x -3.164 0.000 0.000
y 0.000 -0.236 0.000
z 0.000 0.000 3.400
Polar
3z2-r26.800
x2-y2-1.952
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.211 0.000 0.000
y 0.000 3.692 0.000
z 0.000 0.000 6.208


<r2> (average value of r2) Å2
<r2> 41.459
(<r2>)1/2 6.439