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

using model chemistry: BLYP/cc-pVDZ

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 BLYP/cc-pVDZ
 hartrees
Energy at 0K-2613.370652
Energy at 298.15K-2613.374417
HF Energy-2613.370652
Nuclear repulsion energy79.424936
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 BLYP/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' 3075 3080 4.66      
2 A' 1307 1309 18.61      
3 A' 671 672 19.48      
4 A' 262 262 62.46      
5 A" 3238 3243 0.00      
6 A" 890 891 1.22      

Unscaled Zero Point Vibrational Energy (zpe) 4720.9 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 4728.5 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 BLYP/cc-pVDZ
ABC
8.76857 0.36656 0.35229

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 1.511 0.000
Br2 -0.006 -0.374 0.000
H3 0.131 2.005 0.969
H4 0.131 2.005 -0.969

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.88481.09621.0962
Br21.88482.57222.5722
H31.09622.57221.9380
H41.09622.57221.9380

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 116.779 Br2 C1 H4 116.779
H3 C1 H4 124.239
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.126      
2 Br -0.008      
3 H 0.067      
4 H 0.067      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.228 0.743 0.000 0.778
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.969 0.484 0.000
y 0.484 -21.948 0.000
z 0.000 0.000 -24.224
Traceless
 xyz
x -2.883 0.484 0.000
y 0.484 3.149 0.000
z 0.000 0.000 -0.266
Polar
3z2-r2-0.531
x2-y2-4.021
xy0.484
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.160 0.061 0.000
y 0.061 5.785 0.000
z 0.000 0.000 2.928


<r2> (average value of r2) Å2
<r2> 43.563
(<r2>)1/2 6.600

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at BLYP/cc-pVDZ
 hartrees
Energy at 0K-2613.370609
Energy at 298.15K 
HF Energy-2613.370609
Nuclear repulsion energy79.465263
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 BLYP/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 3081 3086 3.60 129.18 0.12 0.21
2 A1 1304 1306 19.33 2.05 0.69 0.82
3 A1 670 671 18.38 11.11 0.26 0.41
4 B1 191i 191i 69.70 0.20 0.75 0.86
5 B2 3248 3253 0.06 66.13 0.75 0.86
6 B2 883 885 1.34 4.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4497.7 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 4504.9 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 BLYP/cc-pVDZ
ABC
8.84034 0.36696 0.35234

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.509
Br2 0.000 0.000 0.374
H3 0.000 0.973 -2.013
H4 0.000 -0.973 -2.013

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.88281.09541.0954
Br21.88282.57722.5772
H31.09542.57721.9453
H41.09542.57721.9453

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 117.382 Br2 C1 H4 117.382
H3 C1 H4 125.236
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.127      
2 Br -0.006      
3 H 0.067      
4 H 0.067      


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 -0.750 0.750
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.013 0.000 0.000
y 0.000 -24.189 0.000
z 0.000 0.000 -21.882
Traceless
 xyz
x -2.978 0.000 0.000
y 0.000 -0.241 0.000
z 0.000 0.000 3.219
Polar
3z2-r26.438
x2-y2-1.824
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.141 0.000 0.000
y 0.000 2.921 0.000
z 0.000 0.000 5.760


<r2> (average value of r2) Å2
<r2> 43.555
(<r2>)1/2 6.600