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All results from a given calculation for HOCO (Hydrocarboxyl radical)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-188.974116
Energy at 298.15K-188.975177
HF Energy-188.974116
Nuclear repulsion energy62.755210
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 PBEPBEultrafine/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' 3396 3357 6.48      
2 A' 1816 1795 304.25      
3 A' 1244 1229 0.83      
4 A' 1025 1013 126.37      
5 A' 572 565 28.47      
6 A" 591 584 107.85      

Unscaled Zero Point Vibrational Energy (zpe) 4321.4 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 4272.2 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 PBEPBEultrafine/TZVP
ABC
4.72040 0.38672 0.35744

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.441 0.000
O2 -1.069 -0.353 0.000
O3 1.166 0.185 0.000
H4 -0.775 -1.300 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33171.19371.9052
O21.33172.29910.9908
O31.19372.29912.4441
H41.90520.99082.4441

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 109.357 O2 C1 O3 131.042
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.161      
2 O -0.217      
3 O -0.200      
4 H 0.257      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.935 -1.820 0.000 2.046
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.496 0.775 0.000
y 0.775 -14.229 0.000
z 0.000 0.000 -16.412
Traceless
 xyz
x -5.176 0.775 0.000
y 0.775 4.225 0.000
z 0.000 0.000 0.951
Polar
3z2-r21.902
x2-y2-6.267
xy0.775
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.775 0.328 0.000
y 0.328 3.264 0.000
z 0.000 0.000 1.878


<r2> (average value of r2) Å2
<r2> 35.395
(<r2>)1/2 5.949

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-188.977366
Energy at 298.15K-188.978415
HF Energy-188.977366
Nuclear repulsion energy62.494051
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 PBEPBEultrafine/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' 3671 3630 97.84      
2 A' 1846 1825 214.00      
3 A' 1190 1176 226.37      
4 A' 1051 1039 61.32      
5 A' 598 592 5.87      
6 A" 548 542 97.35      

Unscaled Zero Point Vibrational Energy (zpe) 4452.2 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 4401.5 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 PBEPBEultrafine/TZVP
ABC
5.41260 0.37804 0.35336

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.414 0.000
O2 -0.950 -0.547 0.000
O3 1.177 0.249 0.000
H4 -1.821 -0.106 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.35111.18881.8938
O21.35112.27090.9763
O31.18882.27093.0191
H41.89380.97633.0191

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 107.828 O2 C1 O3 126.659
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.085      
2 O -0.204      
3 O -0.179      
4 H 0.299      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.973 0.286 0.000 2.986
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.979 -1.006 0.000
y -1.006 -18.283 0.000
z 0.000 0.000 -16.490
Traceless
 xyz
x 3.407 -1.006 0.000
y -1.006 -3.049 0.000
z 0.000 0.000 -0.358
Polar
3z2-r2-0.717
x2-y24.304
xy-1.006
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.265 0.218 0.000
y 0.218 2.522 0.000
z 0.000 0.000 1.928


<r2> (average value of r2) Å2
<r2> 35.696
(<r2>)1/2 5.975