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

using model chemistry: B3LYP/3-21G*

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/3-21G*
 hartrees
Energy at 0K-188.022985
Energy at 298.15K-188.024058
HF Energy-188.022985
Nuclear repulsion energy61.499595
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/3-21G*
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' 2648 2548 21.76      
2 A' 1681 1617 110.36      
3 A' 1203 1157 18.15      
4 A' 900 866 6.94      
5 A' 463 445 39.02      
6 A" 920 885 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 3907.8 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 3759.3 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 B3LYP/3-21G*
ABC
4.15251 0.37888 0.34720

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.286 0.000
H2 -0.390 1.348 0.000
O3 1.186 0.006 0.000
O4 -1.138 -0.389 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.13111.21911.3226
H21.13112.07041.8903
O31.21912.07042.3572
O41.32261.89032.3572

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 123.474 H2 C1 O4 100.487
O3 C1 O4 136.039
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.443      
2 H 0.244      
3 O -0.410      
4 O -0.277      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.056 1.380 0.000 1.737
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.280 -0.979 0.000
y -0.979 -14.255 0.000
z 0.000 0.000 -15.707
Traceless
 xyz
x -5.300 -0.979 0.000
y -0.979 3.739 0.000
z 0.000 0.000 1.561
Polar
3z2-r23.121
x2-y2-6.026
xy-0.979
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.596 0.434 0.000
y 0.434 2.182 0.000
z 0.000 0.000 0.861


<r2> (average value of r2) Å2
<r2> 35.741
(<r2>)1/2 5.978