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All results from a given calculation for HCOO (formate neutral radical)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-188.147953
Energy at 298.15K-188.149252
HF Energy-188.147953
Nuclear repulsion energy63.403141
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/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' 3171 2871 37.99      
2 A' 2004 1815 365.96      
3 A' 1502 1360 15.00      
4 A' 1180 1069 118.41      
5 A' 634 574 46.30      
6 A" 1158 1049 3.24      

Unscaled Zero Point Vibrational Energy (zpe) 4824.3 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 4368.4 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 HF/6-31G(2df,p)
ABC
3.30092 0.43110 0.38130

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.358 0.000
H2 -0.325 1.403 0.000
O3 1.107 -0.024 0.000
O4 -1.066 -0.420 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.09361.17121.3204
H21.09362.02111.9682
O31.17122.02112.2093
O41.32041.96822.2093

picture of formate neutral radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 O3 126.320 H2 C1 O4 108.870
O3 C1 O4 124.810
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.382      
2 H 0.160      
3 O -0.363      
4 O -0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.699 1.690 0.000 2.396
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.601 -0.940 0.000
y -0.940 -14.413 0.000
z 0.000 0.000 -15.727
Traceless
 xyz
x -4.531 -0.940 0.000
y -0.940 3.251 0.000
z 0.000 0.000 1.280
Polar
3z2-r22.560
x2-y2-5.188
xy-0.940
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.874 -0.089 0.000
y -0.089 2.218 0.000
z 0.000 0.000 1.533


<r2> (average value of r2) Å2
<r2> 33.519
(<r2>)1/2 5.790