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All results from a given calculation for COHBr (Formyl bromide)

using model chemistry: MP2=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-2683.646109
Energy at 298.15K-2683.650026
HF Energy-2683.185707
Nuclear repulsion energy143.231893
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/6-31G**
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' 3165 2957 25.19      
2 A' 1821 1701 342.87      
3 A' 1355 1267 72.09      
4 A' 656 613 177.87      
5 A' 360 336 15.05      
6 A" 929 868 2.98      

Unscaled Zero Point Vibrational Energy (zpe) 4142.3 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 3870.6 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 MP2=FULL/6-31G**
ABC
2.47117 0.13315 0.12634

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.379 -1.205 0.000
O2 -0.467 -2.049 0.000
H3 1.460 -1.356 0.000
Br4 0.000 0.714 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.19521.09151.9562
O21.19522.04832.8018
H31.09152.04832.5333
Br41.95622.80182.5333

picture of Formyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 H3 127.156 O2 C1 Br4 123.712
H3 C1 Br4 109.132
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability