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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-2610.948059
Energy at 298.15K-2610.950797
HF Energy-2610.706485
Nuclear repulsion energy70.440240
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/cc-pVDZ
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' 2988 2846 72.99      
2 A' 1176 1120 3.48      
3 A' 710 677 84.08      

Unscaled Zero Point Vibrational Energy (zpe) 2436.9 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 2321.1 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/cc-pVDZ
ABC
15.24373 0.42680 0.41517

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.546 0.000
Br2 0.026 -0.315 0.000
H3 -1.076 1.756 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.86091.1222
Br21.86092.3465
H31.12222.3465

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 100.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-2610.949455
Energy at 298.15K-2610.952180
HF Energy-2610.733525
Nuclear repulsion energy70.706542
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/cc-pVDZ
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' 3256 3102 7.36      
2 A' 953 908 2.31      
3 A' 759 723 30.60      

Unscaled Zero Point Vibrational Energy (zpe) 2484.1 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 2366.1 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/cc-pVDZ
ABC
24.94199 0.42226 0.41523

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.508 0.000
Br2 0.021 -0.320 0.000
H3 -0.861 2.159 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.82871.0956
Br21.82872.6312
H31.09562.6312

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