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

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 2A'
Energy calculated at HF/aug-cc-pVQZ
 hartrees
Energy at 0K-188.219271
Energy at 298.15K-188.220573
HF Energy-188.219271
Nuclear repulsion energy63.502982
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' 3170 2880 36.86      
2 A' 1976 1796 418.00      
3 A' 1498 1361 13.88      
4 A' 1174 1067 133.80      
5 A' 640 582 48.45      
6 A" 1150 1044 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 4804.1 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 4364.6 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
3.28785 0.43334 0.38287

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 0.000 0.360 0.000
H2 -0.316 1.404 0.000
O3 1.104 -0.027 0.000
O4 -1.064 -0.419 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.09071.16981.3188
H21.09072.01581.9702
O31.16982.01582.2036
O41.31881.97022.2036

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 126.154 H2 C1 O4 109.339
O3 C1 O4 124.507
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 0.363      
2 H 0.501      
3 O -0.570      
4 O -0.294      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.791 1.775 0.000 2.522
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.073 -0.945 0.000
y -0.945 -14.616 0.000
z 0.000 0.000 -16.019
Traceless
 xyz
x -4.755 -0.945 0.000
y -0.945 3.430 0.000
z 0.000 0.000 1.326
Polar
3z2-r22.651
x2-y2-5.457
xy-0.945
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.359 -0.066 0.000
y -0.066 2.620 0.000
z 0.000 0.000 2.022


<r2> (average value of r2) Å2
<r2> 33.628
(<r2>)1/2 5.799