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

using model chemistry: HF/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVQZ
 hartrees
Energy at 0K-2685.818741
Energy at 298.15K-2685.822757
HF Energy-2685.818741
Nuclear repulsion energy146.099958
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 HF/aug-cc-pVQZ
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' 3219 2925 15.08      
2 A' 2012 1828 563.51      
3 A' 1428 1298 100.95      
4 A' 707 642 201.63      
5 A' 402 365 7.62      
6 A" 1032 937 1.55      

Unscaled Zero Point Vibrational Energy (zpe) 4399.9 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 3997.3 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 HF/aug-cc-pVQZ
ABC
2.56151 0.13870 0.13158

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.370 -1.194 0.000
O2 -0.458 -1.998 0.000
H3 1.440 -1.368 0.000
Br4 0.000 0.701 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.15421.08411.9303
O21.15421.99982.7374
H31.08411.99982.5204
Br41.93032.73742.5204

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 126.588 O2 C1 Br4 123.128
H3 C1 Br4 110.284
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.055      
2 O -0.504      
3 H 0.478      
4 Br 0.081      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.010 0.132 0.000 2.014
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.727 -3.992 0.000
y -3.992 -31.877 0.000
z 0.000 0.000 -29.427
Traceless
 xyz
x 1.925 -3.992 0.000
y -3.992 -2.800 0.000
z 0.000 0.000 0.875
Polar
3z2-r21.750
x2-y23.150
xy-3.992
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.918 -0.016 0.000
y -0.016 7.320 0.000
z 0.000 0.000 4.162


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