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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: BLYP/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-5186.460632
Energy at 298.15K-5186.465546
HF Energy-5186.460632
Nuclear repulsion energy318.468500
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/cc-pVTZ
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 564 562 11.15      
2 A1 179 178 0.79      
3 B2 568 566 308.26      

Unscaled Zero Point Vibrational Energy (zpe) 655.1 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 653.2 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/cc-pVTZ
ABC
1.23879 0.04219 0.04080

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.017
Br2 0.000 1.591 -0.087
Br3 0.000 -1.591 -0.087

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.93691.9369
Br21.93693.1820
Br31.93693.1820

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 110.455
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.182      
2 Br 0.091      
3 Br 0.091      


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 -1.029 1.029
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.516 0.000 0.000
y 0.000 -39.935 0.000
z 0.000 0.000 -44.746
Traceless
 xyz
x 0.825 0.000 0.000
y 0.000 3.196 0.000
z 0.000 0.000 -4.020
Polar
3z2-r2-8.040
x2-y2-1.581
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.516 0.000 0.000
y 0.000 12.961 0.000
z 0.000 0.000 6.362


<r2> (average value of r2) Å2
<r2> 210.209
(<r2>)1/2 14.499

State 2 (3B1)

Jump to S1C1
Energy calculated at BLYP/cc-pVTZ
 hartrees
Energy at 0K-5186.431276
Energy at 298.15K-5186.436241
HF Energy-5186.431276
Nuclear repulsion energy311.372814
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/cc-pVTZ
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 491 490 0.00      
2 A1 175 175 0.29      
3 B2 795 793 173.97      

Unscaled Zero Point Vibrational Energy (zpe) 730.6 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 728.4 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 BLYP/cc-pVTZ
ABC
2.42036 0.03751 0.03694

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.728
Br2 0.000 1.687 -0.062
Br3 0.000 -1.687 -0.062

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.86321.8632
Br21.86323.3747
Br31.86323.3747

picture of dibromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.226      
2 Br 0.113      
3 Br 0.113      


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 -0.607 0.607
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.026 0.000 0.000
y 0.000 -38.501 0.000
z 0.000 0.000 -42.401
Traceless
 xyz
x -2.576 0.000 0.000
y 0.000 4.212 0.000
z 0.000 0.000 -1.637
Polar
3z2-r2-3.274
x2-y2-4.525
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.505 0.000 0.000
y 0.000 12.437 0.000
z 0.000 0.000 5.468


<r2> (average value of r2) Å2
<r2> 228.552
(<r2>)1/2 15.118