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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: B97D3/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 B97D3/STO-3G
 hartrees
Energy at 0K-5132.155673
Energy at 298.15K-5132.160620
HF Energy-5132.155673
Nuclear repulsion energy314.216780
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 B97D3/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 653 653 35.60      
2 A1 195 195 0.00      
3 B2 679 679 218.48      

Unscaled Zero Point Vibrational Energy (zpe) 763.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 763.5 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 B97D3/STO-3G
ABC
1.13851 0.04140 0.03994

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.061
Br2 0.000 1.606 -0.091
Br3 0.000 -1.606 -0.091

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.97681.9768
Br21.97683.2125
Br31.97683.2125

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 108.692
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.052      
2 Br 0.026      
3 Br 0.026      


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 -0.556 0.556
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.654 0.000 0.000
y 0.000 -38.350 0.000
z 0.000 0.000 -39.700
Traceless
 xyz
x 2.371 0.000 0.000
y 0.000 -0.173 0.000
z 0.000 0.000 -2.198
Polar
3z2-r2-4.396
x2-y21.696
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.992 0.000 0.000
y 0.000 6.756 0.000
z 0.000 0.000 1.867


<r2> (average value of r2) Å2
<r2> 211.823
(<r2>)1/2 14.554

State 2 (3B1)

Jump to S1C1
Energy calculated at B97D3/STO-3G
 hartrees
Energy at 0K-5132.129068
Energy at 298.15K-5132.134043
HF Energy-5132.129068
Nuclear repulsion energy308.964120
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 B97D3/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 554 554 4.70      
2 A1 193 193 0.08      
3 B2 915 915 144.58      

Unscaled Zero Point Vibrational Energy (zpe) 831.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 831.3 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 B97D3/STO-3G
ABC
2.18250 0.03719 0.03656

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.767
Br2 0.000 1.695 -0.066
Br3 0.000 -1.695 -0.066

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.88811.8881
Br21.88813.3895
Br31.88813.3895

picture of dibromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.146      
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 -0.208 0.208
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.931 0.000 0.000
y 0.000 -37.401 0.000
z 0.000 0.000 -37.620
Traceless
 xyz
x -0.421 0.000 0.000
y 0.000 0.375 0.000
z 0.000 0.000 0.046
Polar
3z2-r20.092
x2-y2-0.531
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.520 0.000 0.000
y 0.000 6.170 0.000
z 0.000 0.000 1.346


<r2> (average value of r2) Å2
<r2> 228.398
(<r2>)1/2 15.113