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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: M06-2X/3-21G*

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 M06-2X/3-21G*
 hartrees
Energy at 0K-5161.894391
Energy at 298.15K-5161.899459
HF Energy-5161.894391
Nuclear repulsion energy324.486365
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 M06-2X/3-21G*
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 645 611 26.70      
2 A1 204 193 0.29      
3 B2 712 675 299.39      

Unscaled Zero Point Vibrational Energy (zpe) 780.6 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 739.4 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 M06-2X/3-21G*
ABC
1.19648 0.04424 0.04266

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.035
Br2 0.000 1.554 -0.089
Br3 0.000 -1.554 -0.089

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.91781.9178
Br21.91783.1077
Br31.91783.1077

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 108.238
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.029      
2 Br 0.015      
3 Br 0.015      


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 -1.221 1.221
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.135 0.000 0.000
y 0.000 -39.231 0.000
z 0.000 0.000 -44.416
Traceless
 xyz
x 0.689 0.000 0.000
y 0.000 3.544 0.000
z 0.000 0.000 -4.233
Polar
3z2-r2-8.465
x2-y2-1.904
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.419 0.000 0.000
y 0.000 10.467 0.000
z 0.000 0.000 4.945


<r2> (average value of r2) Å2
<r2> 201.970
(<r2>)1/2 14.212

State 2 (3B1)

Jump to S1C1
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-5161.874808
Energy at 298.15K-5161.879844
HF Energy-5161.874808
Nuclear repulsion energy315.083781
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 M06-2X/3-21G*
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 552 523 0.87      
2 A1 170 161 0.01      
3 B2 946 896 137.60      

Unscaled Zero Point Vibrational Energy (zpe) 834.5 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 790.4 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 M06-2X/3-21G*
ABC
2.31373 0.03861 0.03798

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.744
Br2 0.000 1.663 -0.064
Br3 0.000 -1.663 -0.064

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.84911.8491
Br21.84913.3262
Br31.84913.3262

picture of dibromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.084      
2 Br 0.042      
3 Br 0.042      


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 -0.606 0.606
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.532 0.000 0.000
y 0.000 -37.595 0.000
z 0.000 0.000 -41.840
Traceless
 xyz
x -2.815 0.000 0.000
y 0.000 4.591 0.000
z 0.000 0.000 -1.777
Polar
3z2-r2-3.553
x2-y2-4.937
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.218 0.000 0.000
y 0.000 9.698 0.000
z 0.000 0.000 4.159


<r2> (average value of r2) Å2
<r2> 222.618
(<r2>)1/2 14.920