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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: BLYP/TZVP

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 BLYP/TZVP
 hartrees
Energy at 0K-5186.360762
Energy at 298.15K-5186.365644
HF Energy-5186.360762
Nuclear repulsion energy316.624651
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 BLYP/TZVP
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 555 554 16.07      
2 A1 173 173 0.76      
3 B2 543 542 333.36      

Unscaled Zero Point Vibrational Energy (zpe) 635.7 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 634.1 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 BLYP/TZVP
ABC
1.22743 0.04169 0.04032

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.022
Br2 0.000 1.601 -0.088
Br3 0.000 -1.601 -0.088

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.94761.9476
Br21.94763.2011
Br31.94763.2011

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 110.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.059      
2 Br 0.030      
3 Br 0.030      


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 -1.108 1.108
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.637 0.000 0.000
y 0.000 -40.194 0.000
z 0.000 0.000 -45.222
Traceless
 xyz
x 1.071 0.000 0.000
y 0.000 3.235 0.000
z 0.000 0.000 -4.306
Polar
3z2-r2-8.612
x2-y2-1.443
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.024 0.000 0.000
y 0.000 12.800 0.000
z 0.000 0.000 6.020


<r2> (average value of r2) Å2
<r2> 212.576
(<r2>)1/2 14.580

State 2 (3B1)

Jump to S1C1
Energy calculated at BLYP/TZVP
 hartrees
Energy at 0K-5186.331448
Energy at 298.15K-5186.336398
HF Energy-5186.331448
Nuclear repulsion energy310.072543
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 BLYP/TZVP
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 484 483 0.03      
2 A1 174 174 0.35      
3 B2 776 774 191.63      

Unscaled Zero Point Vibrational Energy (zpe) 717.3 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 715.5 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 BLYP/TZVP
ABC
2.41415 0.03718 0.03662

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.729
Br2 0.000 1.695 -0.062
Br3 0.000 -1.695 -0.062

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.87041.8704
Br21.87043.3896
Br31.87043.3896

picture of dibromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.126      
2 Br 0.063      
3 Br 0.063      


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 -0.728 0.728
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.214 0.000 0.000
y 0.000 -38.427 0.000
z 0.000 0.000 -42.727
Traceless
 xyz
x -2.638 0.000 0.000
y 0.000 4.543 0.000
z 0.000 0.000 -1.906
Polar
3z2-r2-3.811
x2-y2-4.787
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.960 0.000 0.000
y 0.000 12.144 0.000
z 0.000 0.000 4.978


<r2> (average value of r2) Å2
<r2> 230.414
(<r2>)1/2 15.179