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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: MP2=FULL/6-31+G**

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 MP2=FULL/6-31+G**
 hartrees
Energy at 0K-2608.479526
Energy at 298.15K-2608.482256
HF Energy-2608.221209
Nuclear repulsion energy70.687022
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 MP2=FULL/6-31+G**
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' 3048 2863 51.97      
2 A' 1199 1126 7.26      
3 A' 689 647 92.55      

Unscaled Zero Point Vibrational Energy (zpe) 2468.0 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 2317.9 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 MP2=FULL/6-31+G**
ABC
15.81064 0.42900 0.41767

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.541 0.000
Br2 0.026 -0.314 0.000
H3 -1.057 1.756 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.85581.1036
Br21.85582.3364
H31.10362.3364

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 101.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-2608.481132
Energy at 298.15K-2608.483854
HF Energy-2608.249313
Nuclear repulsion energy70.972189
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 MP2=FULL/6-31+G**
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' 3314 3113 6.59      
2 A' 977 918 2.14      
3 A' 744 699 31.21      

Unscaled Zero Point Vibrational Energy (zpe) 2517.7 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 2364.6 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 MP2=FULL/6-31+G**
ABC
25.55132 0.42512 0.41817

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.505 0.000
Br2 0.021 -0.319 0.000
H3 -0.850 2.142 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.82371.0789
Br21.82372.6106
H31.07892.6106

picture of bromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability