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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-38.073913
Energy at 298.15K-38.074653
HF Energy-38.073913
Nuclear repulsion energy32.695669
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 B3LYP/CEP-121G
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' 2996 2920 40.84      
2 A' 1520 1481 100.48      
3 A' 1323 1289 0.51      
4 A' 996 970 96.66      
5 A' 149 145 79.16      
6 A" 971 946 1.36      

Unscaled Zero Point Vibrational Energy (zpe) 3977.2 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 3875.8 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 B3LYP/CEP-121G
ABC
2.83417 0.40072 0.35108

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.400 0.000
H2 -0.273 1.470 0.000
O3 1.150 -0.073 0.000
O4 -1.116 -0.411 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.10401.24391.3800
H21.10402.09892.0616
O31.24392.09892.2919
O41.38002.06162.2919

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 126.651 H2 C1 O4 111.703
O3 C1 O4 121.646
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.005      
2 H 0.144      
3 O -0.138      
4 O -0.010      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.479 2.136 0.000 2.598
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.583 -0.913 0.000
y -0.913 -14.893 0.000
z 0.000 0.000 -16.303
Traceless
 xyz
x -4.985 -0.913 0.000
y -0.913 3.551 0.000
z 0.000 0.000 1.434
Polar
3z2-r22.869
x2-y2-5.690
xy-0.913
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.878 0.095 0.000
y 0.095 2.397 0.000
z 0.000 0.000 1.384


<r2> (average value of r2) Å2
<r2> 30.120
(<r2>)1/2 5.488