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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-2688.035848
Energy at 298.15K-2688.039756
HF Energy-2688.035848
Nuclear repulsion energy143.668598
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 B3PW91/6-311G*
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' 3056 2942 28.38      
2 A' 1889 1819 470.88      
3 A' 1320 1271 65.62      
4 A' 646 622 169.31      
5 A' 360 346 13.53      
6 A" 911 877 4.15      

Unscaled Zero Point Vibrational Energy (zpe) 4090.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 3937.6 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 B3PW91/6-311G*
ABC
2.51534 0.13375 0.12699

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.373 -1.212 0.000
O2 -0.462 -2.039 0.000
H3 1.459 -1.374 0.000
Br4 0.000 0.713 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.17481.09821.9603
O21.17482.03262.7899
H31.09822.03262.5458
Br41.96032.78992.5458

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 126.787 O2 C1 Br4 123.777
H3 C1 Br4 109.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.004      
2 O -0.198      
3 H 0.251      
4 Br -0.057      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.843 -0.130 0.000 1.847
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.417 -3.437 0.000
y -3.437 -30.688 0.000
z 0.000 0.000 -29.177
Traceless
 xyz
x 1.516 -3.437 0.000
y -3.437 -1.891 0.000
z 0.000 0.000 0.376
Polar
3z2-r20.751
x2-y22.271
xy-3.437
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.444 -0.148 0.000
y -0.148 7.082 0.000
z 0.000 0.000 2.325


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000