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

using model chemistry: PBEPBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-188.891883
Energy at 298.15K-188.893142
HF Energy-188.891883
Nuclear repulsion energy62.998852
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 PBEPBE/6-31G**
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' 2989 2948 52.99      
2 A' 1456 1436 53.91      
3 A' 1375 1356 8.52      
4 A' 1246 1229 37.19      
5 A' 624 615 24.07      
6 A" 1001 987 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 4344.8 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 4285.3 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 PBEPBE/6-31G**
ABC
2.46875 0.47099 0.39553

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.438 0.000
H2 -0.001 1.546 0.000
O3 -1.058 -0.261 0.000
O4 1.058 -0.261 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.10871.26731.2675
H21.10872.09322.0942
O31.26732.09322.1155
O41.26752.09422.1155

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 123.384 H2 C1 O4 123.472
O3 C1 O4 113.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.420      
2 H 0.116      
3 O -0.268      
4 O -0.268      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.001 2.105 0.000 2.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.261 -0.001 0.000
y -0.001 -14.607 0.000
z 0.000 0.000 -15.773
Traceless
 xyz
x -3.071 -0.001 0.000
y -0.001 2.410 0.000
z 0.000 0.000 0.661
Polar
3z2-r21.322
x2-y2-3.654
xy-0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.264 -0.001 0.000
y -0.001 2.421 0.000
z 0.000 0.000 1.346


<r2> (average value of r2) Å2
<r2> 32.655
(<r2>)1/2 5.714