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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-189.033664
Energy at 298.15K 
HF Energy-189.033664
Nuclear repulsion energy62.601543
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 mPW1PW91/6-31+G**
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' 2947 2805 24.20      
2 A' 1733 1649 204.18      
3 A' 1357 1291 7.66      
4 A' 1073 1021 61.75      
5 A' 378i 360i 50.06      
6 A" 1004 956 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 3868.0 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 3681.5 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 mPW1PW91/6-31+G**
ABC
3.21730 0.42160 0.37275

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.360 0.000
H2 -0.295 1.431 0.000
O3 1.125 -0.070 0.000
O4 -1.088 -0.379 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.11081.20441.3155
H21.11082.06611.9765
O31.20442.06612.2348
O41.31551.97652.2348

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 126.302 H2 C1 O4 108.802
O3 C1 O4 124.896
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.316      
2 H 0.164      
3 O -0.407      
4 O -0.073      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.619 1.772 0.000 2.401
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.979 -0.702 0.000
y -0.702 -14.789 0.000
z 0.000 0.000 -16.235
Traceless
 xyz
x -4.467 -0.702 0.000
y -0.702 3.317 0.000
z 0.000 0.000 1.149
Polar
3z2-r22.298
x2-y2-5.189
xy-0.702
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.856 -0.028 0.000
y -0.028 2.660 0.000
z 0.000 0.000 1.718


<r2> (average value of r2) Å2
<r2> 34.320
(<r2>)1/2 5.858