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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: B2PLYP/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 B2PLYP/6-311G*
 hartrees
Energy at 0K-5185.326992
Energy at 298.15K-5185.331984
HF Energy-5185.197921
Nuclear repulsion energy323.674466
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 B2PLYP/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 600 600 18.57      
2 A1 194 194 0.63      
3 B2 634 634 373.21      

Unscaled Zero Point Vibrational Energy (zpe) 714.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 714.0 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 B2PLYP/6-311G*
ABC
1.28184 0.04357 0.04214

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.000
Br2 0.000 1.566 -0.086
Br3 0.000 -1.566 -0.086

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.90531.9053
Br21.90533.1312
Br31.90533.1312

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 110.508
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.195      
2 Br 0.097      
3 Br 0.097      


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 -1.253 1.253
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.489 0.000 0.000
y 0.000 -39.917 0.000
z 0.000 0.000 -45.164
Traceless
 xyz
x 1.051 0.000 0.000
y 0.000 3.409 0.000
z 0.000 0.000 -4.461
Polar
3z2-r2-8.921
x2-y2-1.572
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.317 0.000 0.000
y 0.000 11.551 0.000
z 0.000 0.000 5.168


<r2> (average value of r2) Å2
<r2> 204.445
(<r2>)1/2 14.298

State 2 (3B1)

Jump to S1C1
Energy calculated at B2PLYP/6-311G*
 hartrees
Energy at 0K-5185.306032
Energy at 298.15K-5185.311058
HF Energy-5185.190936
Nuclear repulsion energy314.843517
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 B2PLYP/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 529 529 0.26      
2 A1 187 187 0.15      
3 B2 858 858 184.55      

Unscaled Zero Point Vibrational Energy (zpe) 787.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 787.1 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 B2PLYP/6-311G*
ABC
2.45979 0.03837 0.03778

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.722
Br2 0.000 1.668 -0.062
Br3 0.000 -1.668 -0.062

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.84341.8434
Br21.84343.3367
Br31.84343.3367

picture of dibromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.242      
2 Br 0.121      
3 Br 0.121      


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 -0.591 0.591
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.066 0.000 0.000
y 0.000 -38.587 0.000
z 0.000 0.000 -42.411
Traceless
 xyz
x -2.567 0.000 0.000
y 0.000 4.152 0.000
z 0.000 0.000 -1.585
Polar
3z2-r2-3.170
x2-y2-4.480
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.210 0.000 0.000
y 0.000 10.570 0.000
z 0.000 0.000 4.251


<r2> (average value of r2) Å2
<r2> 224.069
(<r2>)1/2 14.969