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

using model chemistry: B97D3/aug-cc-pVTZ

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 B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-2614.755242
Energy at 298.15K-2614.758646
HF Energy-2614.755242
Nuclear repulsion energy80.480823
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 B97D3/aug-cc-pVTZ
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' 3122 3074 5.80      
2 A' 1351 1331 17.46      
3 A' 690 679 15.19      
4 A' 30 29 61.02      
5 A" 3276 3226 0.11      
6 A" 911 897 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 4689.6 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 4617.9 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 B97D3/aug-cc-pVTZ
ABC
9.13137 0.37617 0.36129

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 1.490 0.000
Br2 -0.000 -0.369 0.000
H3 0.005 1.990 0.957
H4 0.005 1.990 -0.957

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85921.07971.0797
Br21.85922.54582.5458
H31.07972.54581.9140
H41.07972.54581.9140

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 117.578 Br2 C1 H4 117.578
H3 C1 H4 124.841
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.868      
2 Br 0.233      
3 H 0.317      
4 H 0.317      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.008 0.915 0.000 0.915
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.373 0.019 0.000
y 0.019 -22.081 0.000
z 0.000 0.000 -24.387
Traceless
 xyz
x -3.139 0.019 0.000
y 0.019 3.299 0.000
z 0.000 0.000 -0.161
Polar
3z2-r2-0.321
x2-y2-4.292
xy0.019
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.604 -0.000 0.000
y -0.000 7.041 0.000
z 0.000 0.000 4.763


<r2> (average value of r2) Å2
<r2> 43.007
(<r2>)1/2 6.558

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-2614.755249
Energy at 298.15K 
HF Energy-2614.755249
Nuclear repulsion energy80.474610
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 B97D3/aug-cc-pVTZ
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 3124 3076 5.78 130.94 0.08 0.15
2 A1 1351 1330 17.38 1.25 0.25 0.40
3 A1 682 671 15.33 12.87 0.09 0.17
4 B1 57 56 60.98 1.26 0.75 0.86
5 B2 3278 3228 0.11 58.63 0.75 0.86
6 B2 912 898 0.86 0.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4701.1 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 4629.2 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 B97D3/aug-cc-pVTZ
ABC
9.12789 0.37612 0.36124

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

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 0.957 -1.990
H4 0.000 -0.957 -1.990

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85941.07971.0797
Br21.85942.54572.5457
H31.07972.54571.9144
H41.07972.54571.9144

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 117.556 Br2 C1 H4 117.556
H3 C1 H4 124.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.868      
2 Br 0.233      
3 H 0.317      
4 H 0.317      


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 -0.916 0.916
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.373 0.000 0.000
y 0.000 -24.386 0.000
z 0.000 0.000 -22.081
Traceless
 xyz
x -3.139 0.000 0.000
y 0.000 -0.159 0.000
z 0.000 0.000 3.299
Polar
3z2-r26.597
x2-y2-1.987
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.605 0.000 0.000
y 0.000 4.764 0.000
z 0.000 0.000 7.041


<r2> (average value of r2) Å2
<r2> 43.010
(<r2>)1/2 6.558