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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-2600.143231
Energy at 298.15K-2600.145917
HF Energy-2600.143231
Nuclear repulsion energy66.476938
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 B3LYP/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' 2781 2683 115.84      
2 A' 1192 1150 10.00      
3 A' 606 584 69.22      

Unscaled Zero Point Vibrational Energy (zpe) 2289.4 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 2209.0 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 B3LYP/3-21G
ABC
14.83829 0.37757 0.36820

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.027 1.648 0.000
Br2 0.027 -0.335 0.000
H3 -1.088 1.825 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.98291.1287
Br21.98292.4306
H31.12872.4306

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 99.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.318      
2 Br 0.120      
3 H 0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.622 -0.435 0.000 1.679
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.265 -3.164 0.000
y -3.164 -25.732 0.000
z 0.000 0.000 -23.656
Traceless
 xyz
x -0.571 -3.164 0.000
y -3.164 -1.271 0.000
z 0.000 0.000 1.843
Polar
3z2-r23.685
x2-y20.467
xy-3.164
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.059 -0.450 0.000
y -0.450 6.023 0.000
z 0.000 0.000 1.546


<r2> (average value of r2) Å2
<r2> 40.306
(<r2>)1/2 6.349

State 2 (3A")

Jump to S1C1
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-2600.143066
Energy at 298.15K-2600.145736
HF Energy-2600.143066
Nuclear repulsion energy68.489783
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 B3LYP/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' 3164 3053 5.08      
2 A' 893 862 2.33      
3 A' 668 644 30.86      

Unscaled Zero Point Vibrational Energy (zpe) 2362.8 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 2279.8 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 B3LYP/3-21G
ABC
24.52346 0.39527 0.38900

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.564 0.000
Br2 0.021 -0.331 0.000
H3 -0.866 2.195 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.89471.0883
Br21.89472.6766
H31.08832.6766

picture of bromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.420      
2 Br 0.187      
3 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.911 0.111 0.000 0.918
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.029 -1.907 0.000
y -1.907 -22.265 0.000
z 0.000 0.000 -25.230
Traceless
 xyz
x -0.282 -1.907 0.000
y -1.907 2.365 0.000
z 0.000 0.000 -2.083
Polar
3z2-r2-4.166
x2-y2-1.764
xy-1.907
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.528 -0.247 0.000
y -0.247 5.328 0.000
z 0.000 0.000 1.035


<r2> (average value of r2) Å2
<r2> 38.979
(<r2>)1/2 6.243