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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: HSEh1PBE/STO-3G

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 HSEh1PBE/STO-3G
 hartrees
Energy at 0K-5129.030912
Energy at 298.15K-5129.035963
HF Energy-5129.030912
Nuclear repulsion energy320.584233
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 HSEh1PBE/STO-3G
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 711 628 45.61      
2 A1 213 188 0.01      
3 B2 790 698 253.51      

Unscaled Zero Point Vibrational Energy (zpe) 856.8 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 756.6 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 HSEh1PBE/STO-3G
ABC
1.19162 0.04306 0.04156

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.037
Br2 0.000 1.575 -0.089
Br3 0.000 -1.575 -0.089

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.93621.9362
Br21.93623.1499
Br31.93623.1499

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 108.861
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.061      
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 -0.649 0.649
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.659 0.000 0.000
y 0.000 -38.604 0.000
z 0.000 0.000 -40.053
Traceless
 xyz
x 2.670 0.000 0.000
y 0.000 -0.248 0.000
z 0.000 0.000 -2.422
Polar
3z2-r2-4.844
x2-y21.945
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.990 0.000 0.000
y 0.000 6.272 0.000
z 0.000 0.000 1.744


<r2> (average value of r2) Å2
<r2> 204.652
(<r2>)1/2 14.306

State 2 (3B1)

Jump to S1C1
Energy calculated at HSEh1PBE/STO-3G
 hartrees
Energy at 0K-5129.018898
Energy at 298.15K-5129.023933
HF Energy-5129.018898
Nuclear repulsion energy312.842540
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 HSEh1PBE/STO-3G
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 592 522 6.96      
2 A1 201 178 0.24      
3 B2 1010 892 153.53      

Unscaled Zero Point Vibrational Energy (zpe) 901.4 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 796.0 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 HSEh1PBE/STO-3G
ABC
2.29813 0.03804 0.03742

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.747
Br2 0.000 1.676 -0.064
Br3 0.000 -1.676 -0.064

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.86151.8615
Br21.86153.3510
Br31.86153.3510

picture of dibromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.145      
2 Br 0.073      
3 Br 0.073      


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 -0.101 0.101
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.907 0.000 0.000
y 0.000 -37.830 0.000
z 0.000 0.000 -37.620
Traceless
 xyz
x -0.182 0.000 0.000
y 0.000 -0.066 0.000
z 0.000 0.000 0.248
Polar
3z2-r20.496
x2-y2-0.077
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.495 0.000 0.000
y 0.000 5.640 0.000
z 0.000 0.000 1.223


<r2> (average value of r2) Å2
<r2> 223.749
(<r2>)1/2 14.958