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: B3LYPultrafine/daug-cc-pVTZ

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 B3LYPultrafine/daug-cc-pVTZ
 hartrees
Energy at 0K-189.176874
Energy at 298.15K-189.177952
HF Energy-189.176874
Nuclear repulsion energy63.260407
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 B3LYPultrafine/daug-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' 3569 3569 16.13      
2 A' 1861 1861 337.76      
3 A' 1291 1291 0.49      
4 A' 1066 1066 165.40      
5 A' 597 597 30.83      
6 A" 583 583 104.77      

Unscaled Zero Point Vibrational Energy (zpe) 4483.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4483.3 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 B3LYPultrafine/daug-cc-pVTZ
ABC
4.79055 0.39270 0.36295

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.439 0.000
O2 -1.059 -0.358 0.000
O3 1.155 0.190 0.000
H4 -0.771 -1.292 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32511.18181.8943
O21.32512.28080.9773
O31.18182.28082.4297
H41.89430.97732.4297

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 109.801 O2 C1 O3 130.877
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.502      
2 O -0.244      
3 O -0.491      
4 H 0.233      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.055 -1.655 0.000 1.963
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.343 0.777 0.000
y 0.777 -14.244 0.000
z 0.000 0.000 -16.477
Traceless
 xyz
x -4.983 0.777 0.000
y 0.777 4.167 0.000
z 0.000 0.000 0.816
Polar
3z2-r21.633
x2-y2-6.100
xy0.777
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.036 0.216 0.000
y 0.216 3.624 0.000
z 0.000 0.000 2.498


<r2> (average value of r2) Å2
<r2> 35.008
(<r2>)1/2 5.917

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3LYPultrafine/daug-cc-pVTZ
 hartrees
Energy at 0K-189.179998
Energy at 298.15K-189.181064
HF Energy-189.179998
Nuclear repulsion energy63.011715
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 B3LYPultrafine/daug-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' 3786 3786 124.13      
2 A' 1897 1897 244.47      
3 A' 1240 1240 236.12      
4 A' 1078 1078 80.54      
5 A' 621 621 4.36      
6 A" 548 548 84.74      

Unscaled Zero Point Vibrational Energy (zpe) 4584.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4584.4 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 B3LYPultrafine/daug-cc-pVTZ
ABC
5.58829 0.38313 0.35855

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.410 0.000
O2 -0.940 -0.547 0.000
O3 1.167 0.256 0.000
H4 -1.811 -0.130 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34151.17681.8898
O21.34152.25490.9657
O31.17682.25493.0028
H41.88980.96573.0028

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 108.904 O2 C1 O3 127.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.477      
2 O -0.508      
3 O -0.444      
4 H 0.475      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.968 0.285 0.000 2.981
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.219 -0.902 0.000
y -0.902 -18.247 0.000
z 0.000 0.000 -16.541
Traceless
 xyz
x 3.174 -0.902 0.000
y -0.902 -2.866 0.000
z 0.000 0.000 -0.308
Polar
3z2-r2-0.616
x2-y24.027
xy-0.902
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.449 0.153 0.000
y 0.153 3.132 0.000
z 0.000 0.000 2.547


<r2> (average value of r2) Å2
<r2> 35.390
(<r2>)1/2 5.949