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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: B3PW91/6-31G(2df,p)

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 B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-2610.410450
Energy at 298.15K-2610.413191
HF Energy-2610.410450
Nuclear repulsion energy71.067505
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 B3PW91/6-31G(2df,p)
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' 2915 2803 51.63      
2 A' 1157 1112 4.36      
3 A' 722 694 52.94      

Unscaled Zero Point Vibrational Energy (zpe) 2397.0 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 2304.5 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 B3PW91/6-31G(2df,p)
ABC
15.43118 0.43462 0.42271

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.531 0.000
Br2 0.026 -0.312 0.000
H3 -1.070 1.744 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.84371.1162
Br21.84372.3302
H31.11622.3302

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 100.989
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.285      
2 Br 0.097      
3 H 0.188      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.246 -0.700 0.000 1.429
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.771 -2.838 0.000
y -2.838 -25.289 0.000
z 0.000 0.000 -23.343
Traceless
 xyz
x -0.455 -2.838 0.000
y -2.838 -1.232 0.000
z 0.000 0.000 1.687
Polar
3z2-r23.374
x2-y20.518
xy-2.838
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.825 -0.302 0.000
y -0.302 6.288 0.000
z 0.000 0.000 3.332


<r2> (average value of r2) Å2
<r2> 36.981
(<r2>)1/2 6.081

State 2 (3A")

Jump to S1C1
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-2610.411430
Energy at 298.15K-2610.414156
HF Energy-2610.411430
Nuclear repulsion energy71.916207
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 B3PW91/6-31G(2df,p)
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' 3218 3094 5.59      
2 A' 910 875 4.92      
3 A' 791 761 21.30      

Unscaled Zero Point Vibrational Energy (zpe) 2459.4 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 2364.5 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 B3PW91/6-31G(2df,p)
ABC
26.34515 0.43662 0.42950

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.020 1.481 0.000
Br2 0.020 -0.315 0.000
H3 -0.839 2.145 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.79581.0857
Br21.79582.6054
H31.08572.6054

picture of bromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.301      
2 Br 0.104      
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
  -0.672 0.229 0.000 0.710
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.795 -1.629 0.000
y -1.629 -21.708 0.000
z 0.000 0.000 -24.883
Traceless
 xyz
x -0.500 -1.629 0.000
y -1.629 2.632 0.000
z 0.000 0.000 -2.132
Polar
3z2-r2-4.264
x2-y2-2.088
xy-1.629
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.436 -0.221 0.000
y -0.221 5.941 0.000
z 0.000 0.000 3.159


<r2> (average value of r2) Å2
<r2> 36.603
(<r2>)1/2 6.050