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/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 B3LYPultrafine/TZVP
 hartrees
Energy at 0K-189.169929
Energy at 298.15K-189.171014
HF Energy-189.169929
Nuclear repulsion energy63.230714
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/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' 3559 3429 13.64      
2 A' 1870 1801 342.90      
3 A' 1281 1235 0.19      
4 A' 1066 1027 168.20      
5 A' 598 576 34.81      
6 A" 589 568 125.37      

Unscaled Zero Point Vibrational Energy (zpe) 4481.5 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 4317.4 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/TZVP
ABC
4.75294 0.39294 0.36293

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.441 0.000
O2 -1.059 -0.357 0.000
O3 1.155 0.188 0.000
H4 -0.772 -1.293 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32571.18251.8983
O21.32572.28010.9791
O31.18252.28012.4308
H41.89830.97912.4308

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 109.979 O2 C1 O3 130.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.234      
2 O -0.265      
3 O -0.243      
4 H 0.274      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.980 -1.791 0.000 2.041
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.757 0.720 0.000
y 0.720 -14.039 0.000
z 0.000 0.000 -16.324
Traceless
 xyz
x -5.575 0.720 0.000
y 0.720 4.501 0.000
z 0.000 0.000 1.074
Polar
3z2-r22.148
x2-y2-6.718
xy0.720
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.591 0.227 0.000
y 0.227 3.004 0.000
z 0.000 0.000 1.830


<r2> (average value of r2) Å2
<r2> 35.024
(<r2>)1/2 5.918

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3LYPultrafine/TZVP
 hartrees
Energy at 0K-189.173214
Energy at 298.15K-189.174284
HF Energy-189.173214
Nuclear repulsion energy62.967061
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/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' 3782 3644 119.77      
2 A' 1904 1834 240.22      
3 A' 1231 1186 245.89      
4 A' 1075 1036 77.62      
5 A' 621 598 5.26      
6 A" 548 528 101.60      

Unscaled Zero Point Vibrational Energy (zpe) 4580.6 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 4413.0 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 B3LYPultrafine/TZVP
ABC
5.55684 0.38289 0.35821

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.411 0.000
O2 -0.941 -0.547 0.000
O3 1.167 0.255 0.000
H4 -1.813 -0.129 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34281.17751.8915
O21.34282.25550.9673
O31.17752.25553.0047
H41.89150.96733.0047

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 108.846 O2 C1 O3 126.874
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.159      
2 O -0.246      
3 O -0.220      
4 H 0.307      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.074 0.382 0.000 3.098
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.099 -1.065 0.000
y -1.065 -18.260 0.000
z 0.000 0.000 -16.399
Traceless
 xyz
x 3.230 -1.065 0.000
y -1.065 -3.011 0.000
z 0.000 0.000 -0.219
Polar
3z2-r2-0.438
x2-y24.161
xy-1.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.059 0.177 0.000
y 0.177 2.424 0.000
z 0.000 0.000 1.872


<r2> (average value of r2) Å2
<r2> 35.363
(<r2>)1/2 5.947