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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: CCSD(T)/cc-pVQZ

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)/cc-pVQZ
 hartrees
Energy at 0K-2611.285462
Energy at 298.15K-2611.288191
HF Energy-2610.799796
Nuclear repulsion energy70.704641
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)/cc-pVQZ
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' 2935 2846        
2 A' 1156 1121        
3 A' 695 674        

Unscaled Zero Point Vibrational Energy (zpe) 2393.0 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 2320.5 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)/cc-pVQZ
ABC
15.64708 0.42951 0.41803

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.541 0.000
Br2 0.026 -0.314 0.000
H3 -1.062 1.753 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.85481.1085
Br21.85482.3359
H31.10852.3359

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 101.038
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at CCSD(T)/cc-pVQZ
 hartrees
Energy at 0K-2611.259564
Energy at 298.15K 
HF Energy-2610.827220
Nuclear repulsion energy70.367396
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)/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/cc-pVQZ
ABC
15.64708 0.42951 0.41803

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVQZ

Point Group is Cs

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability