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All results from a given calculation for HCO (Formyl radical)

using model chemistry: ROHF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROHF/3-21G*
 hartrees
Energy at 0K-112.600567
Energy at 298.15K 
HF Energy-112.600567
Nuclear repulsion energy26.533405
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 ROHF/3-21G*
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' 3026 2749 55.18      
2 A' 2030 1845 104.44      
3 A' 1249 1135 33.17      

Unscaled Zero Point Vibrational Energy (zpe) 3152.8 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 2864.3 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 ROHF/3-21G*
ABC
29.16406 1.47322 1.40238

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.056 0.582 0.000
H2 -0.789 1.275 0.000
O3 0.056 -0.596 0.000

Atom - Atom Distances (Å)
  C1 H2 O3
C11.09361.1777
H21.09362.0534
O31.17772.0534

picture of Formyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 O3 129.357
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.259      
2 H 0.213      
3 O -0.472      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.954 2.086 0.000 2.294
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.198 -0.996 0.001
y -0.996 -11.533 0.002
z 0.001 0.002 -10.673
Traceless
 xyz
x -0.095 -0.996 0.001
y -0.996 -0.597 0.002
z 0.001 0.002 0.692
Polar
3z2-r21.385
x2-y20.335
xy-0.996
xz0.001
yz0.002


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


<r2> (average value of r2) Å2
<r2> 14.120
(<r2>)1/2 3.758