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

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'
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-2656.599647
Energy at 298.15K-2656.603549
HF Energy-2656.458554
Nuclear repulsion energy141.737961
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' 3312 2944 18.28      
2 A' 1747 1553 134.14      
3 A' 1454 1292 49.02      
4 A' 742 659 87.44      
5 A' 418 372 4.56      
6 A" 883 785 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 4277.4 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 3802.2 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
2.37849 0.13067 0.12386

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 0.387 -1.184 0.000
O2 -0.477 -2.085 0.000
H3 1.495 -1.372 0.000
Br4 0.000 0.719 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.24901.12321.9412
O21.24902.09712.8438
H31.12322.09712.5698
Br41.94122.84382.5698

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 124.169 O2 C1 Br4 124.674
H3 C1 Br4 111.156
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability