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

using model chemistry: PBEPBE/6-311G*

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 PBEPBE/6-311G*
 hartrees
Energy at 0K-188.948471
Energy at 298.15K-188.949552
HF Energy-188.948471
Nuclear repulsion energy62.771589
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 PBEPBE/6-311G*
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' 3351 3316 12.18      
2 A' 1825 1806 282.07      
3 A' 1267 1254 5.39      
4 A' 1042 1032 113.26      
5 A' 574 568 28.71      
6 A" 623 616 112.62      

Unscaled Zero Point Vibrational Energy (zpe) 4340.7 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 4295.6 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 PBEPBE/6-311G*
ABC
4.67612 0.38779 0.35809

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.443 0.000
O2 -1.069 -0.351 0.000
O3 1.165 0.181 0.000
H4 -0.774 -1.297 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33111.19441.9047
O21.33112.29620.9913
O31.19442.29622.4383
H41.90470.99132.4383

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 109.323 O2 C1 O3 130.707
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.250      
2 O -0.400      
3 O -0.215      
4 H 0.364      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.832 -1.832 0.000 2.012
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.089 0.751 0.000
y 0.751 -13.932 0.000
z 0.000 0.000 -16.161
Traceless
 xyz
x -5.042 0.751 0.000
y 0.751 4.193 0.000
z 0.000 0.000 0.849
Polar
3z2-r21.699
x2-y2-6.157
xy0.751
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.329 0.395 0.000
y 0.395 2.952 0.000
z 0.000 0.000 1.520


<r2> (average value of r2) Å2
<r2> 35.150
(<r2>)1/2 5.929

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-188.950471
Energy at 298.15K-188.951530
HF Energy-188.950471
Nuclear repulsion energy62.457821
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 PBEPBE/6-311G*
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' 3655 3617 61.66      
2 A' 1853 1833 187.06      
3 A' 1220 1207 243.97      
4 A' 1056 1045 53.24      
5 A' 600 593 5.84      
6 A" 564 558 103.71      

Unscaled Zero Point Vibrational Energy (zpe) 4473.3 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 4426.8 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 PBEPBE/6-311G*
ABC
5.36025 0.37812 0.35320

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.418 0.000
O2 -0.949 -0.547 0.000
O3 1.177 0.248 0.000
H4 -1.823 -0.112 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.35341.18941.8981
O21.35342.27020.9753
O31.18942.27023.0213
H41.89810.97533.0213

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 108.096 O2 C1 O3 126.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.196      
2 O -0.402      
3 O -0.198      
4 H 0.404      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.950 0.325 0.000 2.968
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.479 -1.005 0.000
y -1.005 -17.911 0.000
z 0.000 0.000 -16.200
Traceless
 xyz
x 3.577 -1.005 0.000
y -1.005 -3.071 0.000
z 0.000 0.000 -0.506
Polar
3z2-r2-1.011
x2-y24.432
xy-1.005
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.912 0.246 0.000
y 0.246 2.081 0.000
z 0.000 0.000 1.556


<r2> (average value of r2) Å2
<r2> 35.469
(<r2>)1/2 5.956