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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
2 1 yes C2V 3B1

State 1 (1A1)

Jump to S2C1
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-5185.377613
Energy at 298.15K 
HF Energy-5185.230773
Nuclear repulsion energy324.052919
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 B2PLYP=FULLultrafine/aug-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 A1 594 572 11.91      
2 A1 197 190 0.66      
3 B2 635 611 338.40      

Unscaled Zero Point Vibrational Energy (zpe) 713.2 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 686.3 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 B2PLYP=FULLultrafine/aug-cc-pVDZ
ABC
1.26713 0.04376 0.04230

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.006
Br2 0.000 1.562 -0.086
Br3 0.000 -1.562 -0.086

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.90631.9063
Br21.90633.1247
Br31.90633.1247

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 110.086
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3B1)

Jump to S1C1
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-5185.220242
Energy at 298.15K-5185.225268
HF Energy-5185.220242
Nuclear repulsion energy314.753970
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 B2PLYP=FULLultrafine/aug-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 A1 528 508 0.03      
2 A1 185 178 0.12      
3 B2 855 823 170.23      

Unscaled Zero Point Vibrational Energy (zpe) 783.9 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 754.3 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 B2PLYP=FULLultrafine/aug-cc-pVDZ
ABC
2.41089 0.03841 0.03780

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.729
Br2 0.000 1.668 -0.063
Br3 0.000 -1.668 -0.063

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.84611.8461
Br21.84613.3353
Br31.84613.3353

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