return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at wB97X-D/aug-cc-pVTZ
 hartrees
Energy at 0K-189.089360
Energy at 298.15K-189.090449
HF Energy-189.089360
Nuclear repulsion energy63.407015
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 wB97X-D/aug-cc-pVTZ
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' 2431 2326 47.15      
2 A' 1773 1696 142.75      
3 A' 1159 1109 0.56      
4 A' 875 837 125.09      
5 A' 500 478 143.32      
6 A" 869 831 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 3803.4 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 3638.3 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 wB97X-D/aug-cc-pVTZ
ABC
5.06238 0.39320 0.36486

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.239 0.000
H2 -0.349 1.332 0.000
O3 1.166 -0.015 0.000
O4 -1.123 -0.331 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.14701.19401.2593
H21.14702.02771.8342
O31.19402.02772.3110
O41.25931.83422.3110

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 120.018 H2 C1 O4 99.214
O3 C1 O4 140.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.269      
2 H 0.403      
3 O -0.404      
4 O -0.268      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.871 1.462 0.000 1.702
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.603 -0.708 0.000
y -0.708 -14.327 0.000
z 0.000 0.000 -16.031
Traceless
 xyz
x -5.424 -0.708 0.000
y -0.708 3.990 0.000
z 0.000 0.000 1.434
Polar
3z2-r22.867
x2-y2-6.276
xy-0.708
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.814 0.588 0.000
y 0.588 3.216 0.000
z 0.000 0.000 2.196


<r2> (average value of r2) Å2
<r2> 34.674
(<r2>)1/2 5.888