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

using model chemistry: ROHF/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROHF/TZVP
 hartrees
Energy at 0K-188.198410
Energy at 298.15K-188.199714
HF Energy-188.198410
Nuclear repulsion energy63.400886
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 ROHF/TZVP
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' 3182 3182 39.48      
2 A' 1987 1987 432.53      
3 A' 1510 1510 14.30      
4 A' 1171 1171 146.14      
5 A' 645 645 53.42      
6 A" 1144 1144 2.85      

Unscaled Zero Point Vibrational Energy (zpe) 4820.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4820.2 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 ROHF/TZVP
ABC
3.27598 0.43193 0.38162

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.361 0.000
H2 -0.316 1.406 0.000
O3 1.105 -0.026 0.000
O4 -1.066 -0.421 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.09141.17111.3219
H21.09142.01741.9741
O31.17112.01742.2071
O41.32191.97412.2071

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 126.127 H2 C1 O4 109.403
O3 C1 O4 124.470
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.390      
2 H 0.082      
3 O -0.391      
4 O -0.081      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.777 1.880 0.000 2.587
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.390 -1.044 0.000
y -1.044 -14.649 0.000
z 0.000 0.000 -15.967
Traceless
 xyz
x -5.082 -1.044 0.000
y -1.044 3.529 0.000
z 0.000 0.000 1.553
Polar
3z2-r23.106
x2-y2-5.741
xy-1.044
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 33.765
(<r2>)1/2 5.811