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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: CISD/6-311G*

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 CISD/6-311G*
 hartrees
Energy at 0K-2610.936860
Energy at 298.15K-2610.939591
HF Energy-2610.693651
Nuclear repulsion energy70.275127
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 CISD/6-311G*
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' 3011 2786 61.35      
2 A' 1206 1116 3.06      
3 A' 691 639 89.32      

Unscaled Zero Point Vibrational Energy (zpe) 2453.6 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 2270.4 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 CISD/6-311G*
ABC
15.79204 0.42381 0.41273

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.550 0.000
Br2 0.026 -0.316 0.000
H3 -1.058 1.777 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.86611.1072
Br21.86612.3572
H31.10722.3572

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 101.840
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-2610.941911
Energy at 298.15K-2610.944632
HF Energy-2610.721672
Nuclear repulsion energy70.730294
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 CISD/6-311G*
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' 3251 3008 4.63      
2 A' 962 891 2.79      
3 A' 751 695 24.71      

Unscaled Zero Point Vibrational Energy (zpe) 2482.1 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 2296.7 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 CISD/6-311G*
ABC
25.68076 0.42209 0.41526

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.509 0.000
Br2 0.021 -0.320 0.000
H3 -0.848 2.157 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.82941.0834
Br21.82942.6249
H31.08342.6249

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