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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: MP2=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-2582.548020
Energy at 298.15K-2582.550764
HF Energy-2582.494259
Nuclear repulsion energy68.905441
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=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3143 2794 72.56      
2 A' 1332 1184 17.83      
3 A' 799 710 87.28      

Unscaled Zero Point Vibrational Energy (zpe) 2636.8 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 2343.9 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=FULL/STO-3G
ABC
14.34835 0.40873 0.39741

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.027 1.581 0.000
Br2 0.027 -0.322 0.000
H3 -1.108 1.779 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.90311.1523
Br21.90312.3879
H31.15232.3879

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 99.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-2582.573813
Energy at 298.15K-2582.576538
HF Energy-2582.541524
Nuclear repulsion energy69.676383
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=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3502 3113 0.25      
2 A' 1067 948 8.24      
3 A' 840 746 21.95      

Unscaled Zero Point Vibrational Energy (zpe) 2704.1 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 2403.7 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 MP2=FULL/STO-3G
ABC
23.30617 0.41046 0.40335

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.022 1.534 0.000
Br2 0.022 -0.325 0.000
H3 -0.888 2.155 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.85891.1012
Br21.85892.6409
H31.10122.6409

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