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

using model chemistry: LSDA/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 LSDA/3-21G*
 hartrees
Energy at 0K-112.607638
Energy at 298.15K-112.607483
HF Energy-112.607638
Nuclear repulsion energy25.948540
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 LSDA/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' 2560 2514 79.60      
2 A' 1819 1786 41.85      
3 A' 1080 1060 26.29      

Unscaled Zero Point Vibrational Energy (zpe) 2729.1 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 2679.9 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 LSDA/3-21G*
ABC
24.39943 1.42489 1.34627

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.061 0.597 0.000
H2 -0.859 1.266 0.000
O3 0.061 -0.606 0.000

Atom - Atom Distances (Å)
  C1 H2 O3
C11.13821.2022
H21.13822.0854
O31.20222.0854

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 125.996
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.099      
2 H 0.197      
3 O -0.296      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.044 1.112 0.000 1.525
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.197 -1.139 0.000
y -1.139 -11.622 0.000
z 0.000 0.000 -10.701
Traceless
 xyz
x -0.035 -1.139 0.000
y -1.139 -0.673 0.000
z 0.000 0.000 0.708
Polar
3z2-r21.416
x2-y20.425
xy-1.139
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.432 -0.425 0.000
y -0.425 2.324 0.000
z 0.000 0.000 0.936


<r2> (average value of r2) Å2
<r2> 14.441
(<r2>)1/2 3.800