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

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-2687.550257
Energy at 298.15K-2687.554115
HF Energy-2687.550257
Nuclear repulsion energy141.960438
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 PBEPBE/cc-pVDZ
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' 2964 2947 24.25      
2 A' 1821 1811 387.61      
3 A' 1225 1218 40.79      
4 A' 618 615 142.76      
5 A' 341 339 12.23      
6 A" 862 857 4.76      

Unscaled Zero Point Vibrational Energy (zpe) 3915.7 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 3893.0 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 PBEPBE/cc-pVDZ
ABC
2.45872 0.13053 0.12395

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.376 -1.224 0.000
O2 -0.467 -2.066 0.000
H3 1.482 -1.368 0.000
Br4 0.000 0.721 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.19171.11571.9809
O21.19172.07082.8262
H31.11572.07082.5613
Br41.98092.82622.5613

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 127.614 O2 C1 Br4 124.044
H3 C1 Br4 108.342
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.070      
2 O -0.076      
3 H 0.090      
4 Br -0.085      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.622 -0.210 0.000 1.635
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.237 -3.004 0.000
y -3.004 -30.067 0.000
z 0.000 0.000 -28.950
Traceless
 xyz
x 1.272 -3.004 0.000
y -3.004 -1.474 0.000
z 0.000 0.000 0.202
Polar
3z2-r20.405
x2-y21.831
xy-3.004
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.480 -0.217 0.000
y -0.217 7.109 0.000
z 0.000 0.000 2.298


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