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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
2 1 yes CS 3A"

State 1 (1A')

Jump to S2C1
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-2609.808734
Energy at 298.15K-2609.811439
HF Energy-2609.808734
Nuclear repulsion energy69.513822
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 PBEPBE/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 2780 2741 93.40      
2 A' 1161 1144 2.73      
3 A' 652 643 53.44      

Unscaled Zero Point Vibrational Energy (zpe) 2296.8 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 2263.9 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 PBEPBE/6-31G*
ABC
14.79531 0.41553 0.40418

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.027 1.570 0.000
Br2 0.027 -0.319 0.000
H3 -1.091 1.752 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.88871.1320
Br21.88872.3532
H31.13202.3532

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 99.276
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.171      
2 Br 0.004      
3 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.285 -0.785 0.000 1.506
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.027 -2.797 0.000
y -2.797 -25.427 0.000
z 0.000 0.000 -23.410
Traceless
 xyz
x -0.608 -2.797 0.000
y -2.797 -1.208 0.000
z 0.000 0.000 1.816
Polar
3z2-r23.632
x2-y20.400
xy-2.797
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.270 -0.353 0.000
y -0.353 6.083 0.000
z 0.000 0.000 2.591


<r2> (average value of r2) Å2
<r2> 38.011
(<r2>)1/2 6.165

State 2 (3A")

Jump to S1C1
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-2609.805133
Energy at 298.15K-2609.807826
HF Energy-2609.805133
Nuclear repulsion energy70.823472
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 PBEPBE/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3137 3092 6.70      
2 A' 890 877 6.33      
3 A' 731 720 23.86      

Unscaled Zero Point Vibrational Energy (zpe) 2378.9 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 2344.8 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 PBEPBE/6-31G*
ABC
24.52675 0.42393 0.41673

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.506 0.000
Br2 0.021 -0.320 0.000
H3 -0.867 2.147 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.82601.0953
Br21.82602.6216
H31.09532.6216

picture of bromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.202      
2 Br 0.004      
3 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.766 0.052 0.000 0.768
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.874 -1.746 0.000
y -1.746 -21.883 0.000
z 0.000 0.000 -25.047
Traceless
 xyz
x -0.409 -1.746 0.000
y -1.746 2.577 0.000
z 0.000 0.000 -2.169
Polar
3z2-r2-4.337
x2-y2-1.991
xy-1.746
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.759 -0.241 0.000
y -0.241 5.717 0.000
z 0.000 0.000 2.356


<r2> (average value of r2) Å2
<r2> 37.310
(<r2>)1/2 6.108