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

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-186.335551
Energy at 298.15K-186.336610
HF Energy-186.335551
Nuclear repulsion energy59.736559
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 PBE1PBE/STO-3G
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' 3202 2824 4.26      
2 A' 1839 1622 45.95      
3 A' 1411 1245 2.56      
4 A' 1094 965 19.74      
5 A' 491 433 13.09      
6 A" 921 812 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 4478.6 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 3950.5 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 PBE1PBE/STO-3G
ABC
2.98366 0.38038 0.33737

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.383 0.000
H2 -0.359 1.452 0.000
O3 1.178 -0.017 0.000
O4 -1.133 -0.452 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.12761.24401.4072
H21.12762.12582.0548
O31.24402.12582.3518
O41.40722.05482.3518

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 127.300 H2 C1 O4 107.804
O3 C1 O4 124.895
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.125      
2 H 0.087      
3 O -0.184      
4 O -0.028      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.109 0.930 0.000 1.447
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.881 -0.723 0.000
y -0.723 -13.510 0.000
z 0.000 0.000 -14.217
Traceless
 xyz
x -3.017 -0.723 0.000
y -0.723 2.039 0.000
z 0.000 0.000 0.978
Polar
3z2-r21.956
x2-y2-3.370
xy-0.723
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.052 0.012 0.000
y 0.012 1.218 0.000
z 0.000 0.000 0.394


<r2> (average value of r2) Å2
<r2> 35.412
(<r2>)1/2 5.951