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

using model chemistry: PBEPBE/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-2685.274511
Energy at 298.15K-2685.278401
HF Energy-2685.274511
Nuclear repulsion energy144.220748
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/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 2964 2933 23.43      
2 A' 1813 1794 334.80      
3 A' 1265 1252 31.75      
4 A' 642 635 141.86      
5 A' 354 350 7.45      
6 A" 883 874 4.20      

Unscaled Zero Point Vibrational Energy (zpe) 3960.2 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 3919.4 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/6-31G(2df,p)
ABC
2.48902 0.13517 0.12820

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.375 -1.191 0.000
O2 -0.465 -2.036 0.000
H3 1.471 -1.347 0.000
Br4 0.000 0.708 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.19111.10771.9358
O21.19112.05522.7833
H31.10772.05522.5274
Br41.93582.78332.5274

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 126.733 O2 C1 Br4 124.026
H3 C1 Br4 109.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.054      
2 O -0.110      
3 H 0.172      
4 Br -0.009      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.548 0.039 0.000 1.548
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.059 -3.107 0.000
y -3.107 -30.393 0.000
z 0.000 0.000 -28.679
Traceless
 xyz
x 1.477 -3.107 0.000
y -3.107 -2.024 0.000
z 0.000 0.000 0.547
Polar
3z2-r21.094
x2-y22.334
xy-3.107
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.483 -0.138 0.000
y -0.138 7.412 0.000
z 0.000 0.000 3.526


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