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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: mPW1PW91/3-21G

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 mPW1PW91/3-21G
 hartrees
Energy at 0K-2600.291423
Energy at 298.15K-2600.294119
HF Energy-2600.291423
Nuclear repulsion energy66.980026
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 mPW1PW91/3-21G
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' 2804 2676 107.79      
2 A' 1204 1150 11.87      
3 A' 622 594 74.86      

Unscaled Zero Point Vibrational Energy (zpe) 2314.7 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 2209.6 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 mPW1PW91/3-21G
ABC
14.88907 0.38367 0.37403

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.027 1.634 0.000
Br2 0.027 -0.332 0.000
H3 -1.087 1.817 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.96641.1281
Br21.96642.4206
H31.12812.4206

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 99.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.345      
2 Br 0.128      
3 H 0.217      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.690 -0.430 0.000 1.743
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.274 -3.284 0.000
y -3.284 -25.828 0.000
z 0.000 0.000 -23.709
Traceless
 xyz
x -0.505 -3.284 0.000
y -3.284 -1.337 0.000
z 0.000 0.000 1.841
Polar
3z2-r23.683
x2-y20.555
xy-3.284
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.053 -0.442 0.000
y -0.442 5.991 0.000
z 0.000 0.000 1.562


<r2> (average value of r2) Å2
<r2> 39.973
(<r2>)1/2 6.322

State 2 (3A")

Jump to S1C1
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-2600.299349
Energy at 298.15K-2600.302030
HF Energy-2600.299349
Nuclear repulsion energy68.849836
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 mPW1PW91/3-21G
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' 3212 3067 5.40      
2 A' 898 857 2.16      
3 A' 689 658 30.89      

Unscaled Zero Point Vibrational Energy (zpe) 2399.5 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 2290.6 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 mPW1PW91/3-21G
ABC
24.93437 0.39940 0.39310

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.555 0.000
Br2 0.021 -0.329 0.000
H3 -0.859 2.191 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.88391.0858
Br21.88392.6692
H31.08582.6692

picture of bromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.442      
2 Br 0.186      
3 H 0.256      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.909 0.256 0.000 0.945
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.080 -1.947 0.000
y -1.947 -22.072 0.000
z 0.000 0.000 -25.296
Traceless
 xyz
x -0.395 -1.947 0.000
y -1.947 2.616 0.000
z 0.000 0.000 -2.220
Polar
3z2-r2-4.441
x2-y2-2.007
xy-1.947
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.502 -0.234 0.000
y -0.234 5.196 0.000
z 0.000 0.000 1.033


<r2> (average value of r2) Å2
<r2> 38.727
(<r2>)1/2 6.223