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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: PBEPBE/6-31+G**

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 PBEPBE/6-31+G**
 hartrees
Energy at 0K-5180.582826
Energy at 298.15K-5180.587794
HF Energy-5180.582826
Nuclear repulsion energy323.210036
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 PBEPBE/6-31+G**
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 586 579 12.85      
2 A1 192 189 0.58      
3 B2 612 605 314.54      

Unscaled Zero Point Vibrational Energy (zpe) 694.8 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 686.9 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 PBEPBE/6-31+G**
ABC
1.23701 0.04364 0.04215

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.018
Br2 0.000 1.564 -0.087
Br3 0.000 -1.564 -0.087

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.91561.9156
Br21.91563.1288
Br31.91563.1288

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 109.509
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.069      
2 Br 0.035      
3 Br 0.035      


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 -1.146 1.146
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.590 0.000 0.000
y 0.000 -39.853 0.000
z 0.000 0.000 -45.263
Traceless
 xyz
x 0.968 0.000 0.000
y 0.000 3.573 0.000
z 0.000 0.000 -4.542
Polar
3z2-r2-9.083
x2-y2-1.737
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.018 0.000 0.000
y 0.000 12.913 0.000
z 0.000 0.000 6.901


<r2> (average value of r2) Å2
<r2> 204.449
(<r2>)1/2 14.299

State 2 (3B1)

Jump to S1C1
Energy calculated at PBEPBE/6-31+G**
 hartrees
Energy at 0K-5180.555456
Energy at 298.15K-5180.560433
HF Energy-5180.555455
Nuclear repulsion energy315.143832
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 PBEPBE/6-31+G**
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 498 492 0.05      
2 A1 172 170 0.21      
3 B2 850 840 178.99      

Unscaled Zero Point Vibrational Energy (zpe) 759.9 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 751.3 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 PBEPBE/6-31+G**
ABC
2.54448 0.03835 0.03778

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.710
Br2 0.000 1.669 -0.061
Br3 0.000 -1.669 -0.061

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.83811.8381
Br21.83813.3375
Br31.83813.3375

picture of dibromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.066      
2 Br 0.033      
3 Br 0.033      


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 -0.646 0.646
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.215 0.000 0.000
y 0.000 -38.369 0.000
z 0.000 0.000 -42.701
Traceless
 xyz
x -2.681 0.000 0.000
y 0.000 4.590 0.000
z 0.000 0.000 -1.909
Polar
3z2-r2-3.818
x2-y2-4.847
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.073 0.000 0.000
y 0.000 12.231 0.000
z 0.000 0.000 5.758


<r2> (average value of r2) Å2
<r2> 224.087
(<r2>)1/2 14.970