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

using model chemistry: HF/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/cc-pVDZ
 hartrees
Energy at 0K-188.146846
Energy at 298.15K-188.148146
HF Energy-188.146846
Nuclear repulsion energy63.263480
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 HF/cc-pVDZ
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' 3198 2904 41.83      
2 A' 2009 1824 413.84      
3 A' 1489 1352 20.75      
4 A' 1184 1075 129.07      
5 A' 636 577 51.87      
6 A" 1145 1040 3.74      

Unscaled Zero Point Vibrational Energy (zpe) 4830.2 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 4385.8 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 HF/cc-pVDZ
ABC
3.27238 0.42987 0.37996

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.359 0.000
H2 -0.325 1.410 0.000
O3 1.109 -0.028 0.000
O4 -1.069 -0.418 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.10001.17481.3216
H21.10002.03101.9739
O31.17482.03102.2125
O41.32161.97392.2125

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 126.437 H2 C1 O4 108.853
O3 C1 O4 124.710
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.399      
2 H 0.054      
3 O -0.315      
4 O -0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.675 1.753 0.000 2.425
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.849 -1.013 0.000
y -1.013 -14.478 0.000
z 0.000 0.000 -15.752
Traceless
 xyz
x -4.734 -1.013 0.000
y -1.013 3.323 0.000
z 0.000 0.000 1.411
Polar
3z2-r22.822
x2-y2-5.371
xy-1.013
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.725 -0.127 0.000
y -0.127 1.982 0.000
z 0.000 0.000 1.209


<r2> (average value of r2) Å2
<r2> 33.678
(<r2>)1/2 5.803