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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: QCISD/TZVP

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 QCISD/TZVP
 hartrees
Energy at 0K-2611.103848
Energy at 298.15K-2611.106561
HF Energy-2610.740252
Nuclear repulsion energy69.884504
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 QCISD/TZVP
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' 2969 2836 71.09      
2 A' 1163 1111 6.20      
3 A' 658 628 75.00      

Unscaled Zero Point Vibrational Energy (zpe) 2394.6 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 2287.6 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 QCISD/TZVP
ABC
15.54621 0.41902 0.40802

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.561 0.000
Br2 0.026 -0.318 0.000
H3 -1.065 1.761 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.87931.1088
Br21.87932.3474
H31.10882.3474

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 100.354
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at QCISD/TZVP
 hartrees
Energy at 0K-2611.101969
Energy at 298.15K-2611.104682
HF Energy-2610.769199
Nuclear repulsion energy70.667790
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 QCISD/TZVP
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' 3238 3093 4.42      
2 A' 945 903 2.09      
3 A' 730 698 25.19      

Unscaled Zero Point Vibrational Energy (zpe) 2456.5 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 2346.7 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 QCISD/TZVP
ABC
25.44874 0.42142 0.41455

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.511 0.000
Br2 0.021 -0.321 0.000
H3 -0.851 2.152 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.83171.0824
Br21.83172.6219
H31.08242.6219

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