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

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

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at ROHF/cc-pVTZ-PP
 hartrees
Energy at 0K-454.497711
Energy at 298.15K 
HF Energy-454.497711
Nuclear repulsion energy59.286160
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 ROHF/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 3325 3325 8.14      
2 A1 1493 1493 35.67      
3 A1 730 730 17.10      
4 B1 509i 509i 60.12      
5 B2 3486 3486 0.69      
6 B2 990 990 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 4757.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4757.5 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 ROHF/cc-pVTZ-PP
ABC
9.39625 0.37536 0.36094

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.493
Br2 0.000 0.000 0.369
H3 0.000 0.943 -1.988
H4 0.000 -0.943 -1.988

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86201.06581.0658
Br21.86202.53962.5396
H31.06582.53961.8869
H41.06582.53961.8869

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 117.726 Br2 C1 H4 117.726
H3 C1 H4 124.548
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.258      
2 Br -0.054      
3 H 0.156      
4 H 0.156      


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 -1.411 1.411
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.198 0.000 0.000
y 0.000 -24.198 -0.001
z 0.000 -0.001 -21.209
Traceless
 xyz
x -3.494 0.000 0.000
y 0.000 -0.495 -0.001
z 0.000 -0.001 3.989
Polar
3z2-r27.978
x2-y2-2.000
xy0.000
xz0.000
yz-0.001


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


<r2> (average value of r2) Å2
<r2> 41.374
(<r2>)1/2 6.432