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 HOCO (Hydrocarboxyl radical)

using model chemistry: B97D3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS cis 1A'
1 2 yes CS trans 1A'

Conformer 1 (CS cis)

Jump to S1C2
Energy calculated at B97D3/TZVP
 hartrees
Energy at 0K-189.062884
Energy at 298.15K-189.063943
HF Energy-189.062884
Nuclear repulsion energy62.775025
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 B97D3/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' 3478 3428 6.74      
2 A' 1805 1779 301.72      
3 A' 1259 1240 0.24      
4 A' 1013 999 153.83      
5 A' 579 570 29.86      
6 A" 582 573 113.18      

Unscaled Zero Point Vibrational Energy (zpe) 4357.4 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 4294.7 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 B97D3/TZVP
ABC
4.68425 0.38720 0.35764

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.444 0.000
O2 -1.067 -0.359 0.000
O3 1.164 0.188 0.000
H4 -0.773 -1.297 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33611.19181.9049
O21.33612.29740.9826
O31.19182.29742.4404
H41.90490.98262.4404

picture of Hydrocarboxyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 109.542 O2 C1 O3 130.596
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.190      
2 O -0.239      
3 O -0.218      
4 H 0.267      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.954 -1.789 0.000 2.027
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.444 0.715 0.000
y 0.715 -13.963 0.000
z 0.000 0.000 -16.227
Traceless
 xyz
x -5.349 0.715 0.000
y 0.715 4.373 0.000
z 0.000 0.000 0.977
Polar
3z2-r21.953
x2-y2-6.481
xy0.715
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.696 0.264 0.000
y 0.264 3.052 0.000
z 0.000 0.000 1.837


<r2> (average value of r2) Å2
<r2> 35.272
(<r2>)1/2 5.939

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B97D3/TZVP
 hartrees
Energy at 0K-189.066276
Energy at 298.15K-189.067323
HF Energy-189.066276
Nuclear repulsion energy62.518755
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 B97D3/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' 3709 3656 92.69      
2 A' 1838 1812 207.47      
3 A' 1202 1185 218.48      
4 A' 1032 1017 81.58      
5 A' 602 593 6.08      
6 A" 543 535 97.78      

Unscaled Zero Point Vibrational Energy (zpe) 4463.3 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 4399.0 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 B97D3/TZVP
ABC
5.38499 0.37837 0.35353

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.417 0.000
O2 -0.948 -0.550 0.000
O3 1.175 0.252 0.000
H4 -1.817 -0.118 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.35441.18671.8947
O21.35442.26980.9707
O31.18672.26983.0155
H41.89470.97073.0155

picture of Hydrocarboxyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 108.011 O2 C1 O3 126.431
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.119      
2 O -0.224      
3 O -0.196      
4 H 0.300      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.994 0.337 0.000 3.013
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.930 -1.041 0.000
y -1.041 -18.079 0.000
z 0.000 0.000 -16.303
Traceless
 xyz
x 3.261 -1.041 0.000
y -1.041 -2.963 0.000
z 0.000 0.000 -0.299
Polar
3z2-r2-0.597
x2-y24.149
xy-1.041
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.174 0.214 0.000
y 0.214 2.491 0.000
z 0.000 0.000 1.883


<r2> (average value of r2) Å2
<r2> 35.589
(<r2>)1/2 5.966