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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: MP2=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-2611.215489
Energy at 298.15K-2611.218236
HF Energy-2610.793971
Nuclear repulsion energy71.604800
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/cc-pVTZ
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' 3016 2863 43.44      
2 A' 1173 1113 5.69      
3 A' 730 693 74.14      

Unscaled Zero Point Vibrational Energy (zpe) 2459.0 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 2334.6 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/cc-pVTZ
ABC
16.01331 0.44063 0.42883

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.520 0.000
Br2 0.026 -0.310 0.000
H3 -1.050 1.738 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.83051.0979
Br21.83052.3141
H31.09792.3141

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 101.466
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-2611.213817
Energy at 298.15K 
HF Energy-2610.821194
Nuclear repulsion energy71.872845
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/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/cc-pVTZ
ABC
16.01331 0.44063 0.42883

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.020 1.483 0.000
Br2 0.020 -0.315 0.000
H3 -0.830 2.137 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.79891.0722
Br21.79892.5957
H31.07222.5957

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