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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: CCSD(T)/6-31G*

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 CCSD(T)/6-31G*
 hartrees
Energy at 0K-2608.457177
Energy at 298.15K-2608.459883
HF Energy-2608.202535
Nuclear repulsion energy69.377755
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 CCSD(T)/6-31G*
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' 2905 2795        
2 A' 1186 1141        
3 A' 649 625        

Unscaled Zero Point Vibrational Energy (zpe) 2370.0 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 2280.1 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 CCSD(T)/6-31G*
ABC
15.31536 0.41302 0.40217

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.572 0.000
Br2 0.026 -0.320 0.000
H3 -1.073 1.778 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.89251.1182
Br21.89252.3684
H31.11822.3684

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 100.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-2608.454067
Energy at 298.15K-2608.456769
HF Energy-2608.231876
Nuclear repulsion energy70.286208
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 CCSD(T)/6-31G*
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' 3220 3098        
2 A' 942 906        
3 A' 720 692        

Unscaled Zero Point Vibrational Energy (zpe) 2440.6 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 2348.1 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 CCSD(T)/6-31G*
ABC
24.91555 0.41701 0.41014

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.520 0.000
Br2 0.021 -0.322 0.000
H3 -0.860 2.159 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.84191.0886
Br21.84192.6328
H31.08862.6328

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