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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: HF/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 HF/6-31G*
 hartrees
Energy at 0K-2608.203129
Energy at 298.15K-2608.205855
HF Energy-2608.203129
Nuclear repulsion energy70.023229
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 HF/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' 3215 2888 50.83      
2 A' 1264 1136 2.93      
3 A' 676 607 99.82      

Unscaled Zero Point Vibrational Energy (zpe) 2577.3 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 2315.7 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 HF/6-31G*
ABC
16.31240 0.41972 0.40919

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.025 1.557 0.000
Br2 0.025 -0.318 0.000
H3 -1.041 1.787 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.87521.0908
Br21.87522.3596
H31.09082.3596

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 102.162
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.070      
2 Br -0.120      
3 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.555 -0.043 0.000 1.555
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.370 -3.371 0.000
y -3.371 -24.927 0.000
z 0.000 0.000 -23.813
Traceless
 xyz
x -1.000 -3.371 0.000
y -3.371 -0.335 0.000
z 0.000 0.000 1.335
Polar
3z2-r22.671
x2-y2-0.444
xy-3.371
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.964 -0.360 0.000
y -0.360 5.589 0.000
z 0.000 0.000 2.656


<r2> (average value of r2) Å2
<r2> 37.820
(<r2>)1/2 6.150

State 2 (3A")

Jump to S1C1
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-2608.232071
Energy at 298.15K-2608.234796
HF Energy-2608.232071
Nuclear repulsion energy70.367732
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 HF/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' 3417 3070 7.95      
2 A' 1005 903 2.29      
3 A' 747 671 24.11      

Unscaled Zero Point Vibrational Energy (zpe) 2584.2 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 2321.9 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 HF/6-31G*
ABC
25.62869 0.41751 0.41082

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.520 0.000
Br2 0.021 -0.322 0.000
H3 -0.848 2.149 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.84191.0720
Br21.84192.6187
H31.07202.6187

picture of bromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.128      
2 Br -0.091      
3 H 0.219      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.638 0.883 0.000 1.089
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.336 -1.502 0.000
y -1.502 -21.111 0.000
z 0.000 0.000 -25.383
Traceless
 xyz
x -1.089 -1.502 0.000
y -1.502 3.748 0.000
z 0.000 0.000 -2.660
Polar
3z2-r2-5.320
x2-y2-3.225
xy-1.502
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.636 -0.280 0.000
y -0.280 4.983 0.000
z 0.000 0.000 2.279


<r2> (average value of r2) Å2
<r2> 37.588
(<r2>)1/2 6.131