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

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVDZ
 hartrees
Energy at 0K-2613.005861
Energy at 298.15K-2613.009454
HF Energy-2613.005861
Nuclear repulsion energy80.708540
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 HSEh1PBE/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' 3189 3067 3.27      
2 A' 1355 1303 16.44      
3 A' 726 698 19.61      
4 A' 124 119 71.38      
5 A" 3355 3228 1.38      
6 A" 918 883 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 4833.2 cm-1
Scaled (by 0.9619) Zero Point Vibrational Energy (zpe) 4649.0 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 HSEh1PBE/cc-pVDZ
ABC
8.99275 0.37907 0.36384

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.003 1.483 0.000
Br2 -0.003 -0.368 0.000
H3 0.061 1.987 0.963
H4 0.061 1.987 -0.963

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85081.08851.0885
Br21.85082.54472.5447
H31.08852.54471.9254
H41.08852.54471.9254

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 117.576 Br2 C1 H4 117.576
H3 C1 H4 124.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.188      
2 Br -0.020      
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
  0.112 0.944 0.000 0.951
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.056 0.239 0.000
y 0.239 -21.616 0.000
z 0.000 0.000 -24.102
Traceless
 xyz
x -3.197 0.239 0.000
y 0.239 3.463 0.000
z 0.000 0.000 -0.266
Polar
3z2-r2-0.532
x2-y2-4.440
xy0.239
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.138 0.027 0.000
y 0.027 5.483 0.000
z 0.000 0.000 2.849


<r2> (average value of r2) Å2
<r2> 42.630
(<r2>)1/2 6.529

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HSEh1PBE/cc-pVDZ
 hartrees
Energy at 0K-2613.005842
Energy at 298.15K 
HF Energy-2613.005842
Nuclear repulsion energy80.730310
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 HSEh1PBE/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 3189 3067 3.01 124.09 0.11 0.21
2 A1 1355 1303 16.49 1.64 0.70 0.83
3 A1 723 695 19.37 8.13 0.24 0.39
4 B1 96i 92i 73.28 0.15 0.75 0.86
5 B2 3356 3228 1.54 61.07 0.75 0.86
6 B2 916 881 1.62 4.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4721.1 cm-1
Scaled (by 0.9619) Zero Point Vibrational Energy (zpe) 4541.3 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 HSEh1PBE/cc-pVDZ
ABC
9.01168 0.37929 0.36397

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.482
Br2 0.000 0.000 0.368
H3 0.000 0.963 -1.989
H4 0.000 -0.963 -1.989

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85001.08831.0883
Br21.85002.54562.5456
H31.08832.54561.9267
H41.08832.54561.9267

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 117.722 Br2 C1 H4 117.722
H3 C1 H4 124.556
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.189      
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 -0.945 0.945
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.065 0.000 0.000
y 0.000 -24.094 0.000
z 0.000 0.000 -21.602
Traceless
 xyz
x -3.217 0.000 0.000
y 0.000 -0.260 0.000
z 0.000 0.000 3.478
Polar
3z2-r26.955
x2-y2-1.971
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.134 0.000 0.000
y 0.000 2.847 0.000
z 0.000 0.000 5.478


<r2> (average value of r2) Å2
<r2> 42.620
(<r2>)1/2 6.528