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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: HSEh1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
2 1 yes C2V 3B1

State 1 (1A1)

Jump to S2C1
Energy calculated at HSEh1PBE/6-311G*
 hartrees
Energy at 0K-5185.549106
Energy at 298.15K-5185.554126
HF Energy-5185.549106
Nuclear repulsion energy325.966296
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/6-311G*
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 616 591 19.69      
2 A1 196 189 0.55      
3 B2 660 634 359.46      

Unscaled Zero Point Vibrational Energy (zpe) 736.5 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 706.8 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 HSEh1PBE/6-311G*
ABC
1.29477 0.04422 0.04276

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.995
Br2 0.000 1.554 -0.085
Br3 0.000 -1.554 -0.085

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.89291.8929
Br21.89293.1083
Br31.89293.1083

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 110.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.213      
2 Br 0.106      
3 Br 0.106      


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 -1.274 1.274
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.272 0.000 0.000
y 0.000 -39.599 0.000
z 0.000 0.000 -44.928
Traceless
 xyz
x 0.992 0.000 0.000
y 0.000 3.501 0.000
z 0.000 0.000 -4.493
Polar
3z2-r2-8.985
x2-y2-1.673
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.359 0.000 0.000
y 0.000 11.266 0.000
z 0.000 0.000 5.193


<r2> (average value of r2) Å2
<r2> 201.724
(<r2>)1/2 14.203

State 2 (3B1)

Jump to S1C1
Energy calculated at HSEh1PBE/6-311G*
 hartrees
Energy at 0K-5185.533358
Energy at 298.15K-5185.538398
HF Energy-5185.533358
Nuclear repulsion energy316.676660
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/6-311G*
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 536 515 0.25      
2 A1 189 181 0.14      
3 B2 885 849 177.43      

Unscaled Zero Point Vibrational Energy (zpe) 805.0 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 772.4 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/6-311G*
ABC
2.51004 0.03879 0.03820

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.715
Br2 0.000 1.659 -0.061
Br3 0.000 -1.659 -0.061

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.83181.8318
Br21.83183.3185
Br31.83183.3185

picture of dibromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.255      
2 Br 0.127      
3 Br 0.127      


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 -0.593 0.593
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.848 0.000 0.000
y 0.000 -38.258 0.000
z 0.000 0.000 -42.197
Traceless
 xyz
x -2.620 0.000 0.000
y 0.000 4.265 0.000
z 0.000 0.000 -1.645
Polar
3z2-r2-3.289
x2-y2-4.590
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.262 0.000 0.000
y 0.000 10.497 0.000
z 0.000 0.000 4.285


<r2> (average value of r2) Å2
<r2> 221.716
(<r2>)1/2 14.890