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

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-189.041407
Energy at 298.15K-189.042486
HF Energy-189.041407
Nuclear repulsion energy63.315675
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 mPW1PW91/6-31G(2df,p)
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' 2397 2288 28.75      
2 A' 1790 1709 100.21      
3 A' 1166 1113 1.20      
4 A' 852 814 128.79      
5 A' 497 475 133.20      
6 A" 880 840 0.90      

Unscaled Zero Point Vibrational Energy (zpe) 3791.0 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 3619.2 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 mPW1PW91/6-31G(2df,p)
ABC
5.15134 0.39069 0.36315

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.217 0.000
H2 -0.310 1.336 0.000
O3 1.172 -0.027 0.000
O4 -1.133 -0.303 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.16101.19731.2470
H21.16102.01351.8342
O31.19732.01352.3220
O41.24701.83422.3220

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 117.244 H2 C1 O4 99.168
O3 C1 O4 143.588
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.278      
2 H 0.211      
3 O -0.277      
4 O -0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.783 1.377 0.000 1.584
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.797 -0.688 0.000
y -0.688 -13.994 0.000
z 0.000 0.000 -15.614
Traceless
 xyz
x -4.993 -0.688 0.000
y -0.688 3.711 0.000
z 0.000 0.000 1.281
Polar
3z2-r22.563
x2-y2-5.803
xy-0.688
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.758 0.535 0.000
y 0.535 2.692 0.000
z 0.000 0.000 1.595


<r2> (average value of r2) Å2
<r2> 34.457
(<r2>)1/2 5.870