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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G
 hartrees
Energy at 0K-188.803451
Energy at 298.15K-188.804368
HF Energy-188.803451
Nuclear repulsion energy61.445707
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/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' 2883 2755 40.05      
2 A' 1708 1633 212.61      
3 A' 1307 1249 1.30      
4 A' 960 918 4.25      
5 A' 283 271 39.51      
6 A" 953 911 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 4046.7 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 3868.3 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 PBE1PBE/6-31G
ABC
3.71381 0.38724 0.35067

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.319 0.000
H2 -0.340 1.381 0.000
O3 1.173 -0.023 0.000
O4 -1.130 -0.389 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.11541.22151.3336
H21.11542.06411.9385
O31.22152.06412.3318
O41.33361.93852.3318

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 124.008 H2 C1 O4 104.310
O3 C1 O4 131.682
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.343      
2 H 0.225      
3 O -0.366      
4 O -0.201      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.383 1.621 0.000 2.131
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.935 -0.948 0.000
y -0.948 -14.485 0.000
z 0.000 0.000 -16.055
Traceless
 xyz
x -5.665 -0.948 0.000
y -0.948 4.010 0.000
z 0.000 0.000 1.655
Polar
3z2-r23.311
x2-y2-6.450
xy-0.948
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.703 0.234 0.000
y 0.234 2.209 0.000
z 0.000 0.000 1.037


<r2> (average value of r2) Å2
<r2> 35.786
(<r2>)1/2 5.982