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

using model chemistry: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 2A'
1 2 yes C2V 2A1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-2610.971151
Energy at 298.15K 
HF Energy-2610.971151
Nuclear repulsion energy80.914861
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 wB97X-D/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 A' 3221 3068 4.62      
2 A' 1420 1353 18.72      
3 A' 717 683 19.96      
4 A' 35i 33i 93.62      
5 A" 3380 3220 0.78      
6 A" 966 920 1.91      

Unscaled Zero Point Vibrational Energy (zpe) 4834.3 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 4605.2 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 wB97X-D/cc-pVDZ
ABC
9.16504 0.38056 0.36539

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 1.484 0.000
Br2 -0.007 -0.367 0.000
H3 0.134 1.974 0.954
H4 0.134 1.974 -0.954

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85101.08151.0815
Br21.85102.53172.5317
H31.08152.53171.9079
H41.08152.53171.9079

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 116.933 Br2 C1 H4 116.933
H3 C1 H4 123.788
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.280      
2 Br -0.099      
3 H 0.190      
4 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.022 1.088 0.000 1.088
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.628 0.048 0.000
y 0.048 -21.756 0.000
z 0.000 0.000 -24.434
Traceless
 xyz
x -3.533 0.048 0.000
y 0.048 3.774 0.000
z 0.000 0.000 -0.241
Polar
3z2-r2-0.483
x2-y2-4.871
xy0.048
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.287 0.001 0.000
y 0.001 5.988 0.000
z 0.000 0.000 3.552


<r2> (average value of r2) Å2
<r2> 42.714
(<r2>)1/2 6.536

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-2613.413579
Energy at 298.15K 
HF Energy-2613.413579
Nuclear repulsion energy80.695679
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 wB97X-D/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 3186 3035 3.47 121.32 0.11 0.21
2 A1 1366 1302 16.80 1.34 0.74 0.85
3 A1 726 692 20.04 8.16 0.24 0.39
4 B1 122i 116i 74.90 0.14 0.75 0.86
5 B2 3351 3193 1.56 60.00 0.75 0.86
6 B2 921 877 1.39 3.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4714.3 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 4490.8 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 wB97X-D/cc-pVDZ
ABC
9.02172 0.37890 0.36363

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.483
Br2 0.000 0.000 0.368
H3 0.000 0.963 -1.990
H4 0.000 -0.963 -1.990

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85071.08851.0885
Br21.85072.54742.5474
H31.08852.54741.9256
H41.08852.54741.9256

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 117.802 Br2 C1 H4 117.802
H3 C1 H4 124.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.190      
2 Br -0.019      
3 H 0.104      
4 H 0.104      


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 -0.955 0.955
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.038 0.000 0.000
y 0.000 -24.084 0.000
z 0.000 0.000 -21.565
Traceless
 xyz
x -3.213 0.000 0.000
y 0.000 -0.283 0.000
z 0.000 0.000 3.496
Polar
3z2-r26.992
x2-y2-1.953
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.142 0.000 0.000
y 0.000 2.846 0.000
z 0.000 0.000 5.480


<r2> (average value of r2) Å2
<r2> 42.633
(<r2>)1/2 6.529