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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-2609.882866
Energy at 298.15K-2609.885592
HF Energy-2609.882866
Nuclear repulsion energy70.387945
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 PBE1PBE/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' 2935 2789 72.80      
2 A' 1197 1137 3.56      
3 A' 688 654 67.81      

Unscaled Zero Point Vibrational Energy (zpe) 2409.8 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 2290.1 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 PBE1PBE/6-31G*
ABC
15.34448 0.42587 0.41437

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.548 0.000
Br2 0.026 -0.315 0.000
H3 -1.072 1.749 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.86381.1163
Br21.86382.3386
H31.11632.3386

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 100.370
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.160      
2 Br -0.023      
3 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.392 -0.668 0.000 1.544
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.007 -3.009 0.000
y -3.009 -25.319 0.000
z 0.000 0.000 -23.441
Traceless
 xyz
x -0.627 -3.009 0.000
y -3.009 -1.095 0.000
z 0.000 0.000 1.722
Polar
3z2-r23.445
x2-y20.312
xy-3.009
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.156 -0.349 0.000
y -0.349 5.900 0.000
z 0.000 0.000 2.608


<r2> (average value of r2) Å2
<r2> 37.462
(<r2>)1/2 6.121

State 2 (3A")

Jump to S1C1
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-2609.886091
Energy at 298.15K-2609.888803
HF Energy-2609.886091
Nuclear repulsion energy71.288611
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 PBE1PBE/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' 3246 3085 6.95      
2 A' 924 878 3.82      
3 A' 756 718 26.62      

Unscaled Zero Point Vibrational Energy (zpe) 2462.8 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 2340.4 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 PBE1PBE/6-31G*
ABC
25.41865 0.42920 0.42208

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.496 0.000
Br2 0.021 -0.318 0.000
H3 -0.852 2.141 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.81381.0858
Br21.81382.6096
H31.08582.6096

picture of bromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.195      
2 Br -0.019      
3 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.749 0.263 0.000 0.794
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.931 -1.721 0.000
y -1.721 -21.573 0.000
z 0.000 0.000 -25.071
Traceless
 xyz
x -0.608 -1.721 0.000
y -1.721 2.928 0.000
z 0.000 0.000 -2.319
Polar
3z2-r2-4.638
x2-y2-2.357
xy-1.721
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.709 -0.235 0.000
y -0.235 5.446 0.000
z 0.000 0.000 2.334


<r2> (average value of r2) Å2
<r2> 36.986
(<r2>)1/2 6.082