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

using model chemistry: PBEPBEultrafine/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-188.912390
Energy at 298.15K-188.913454
HF Energy-188.912390
Nuclear repulsion energy62.685924
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/6-31G(2df,p)
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' 3426 3391 6.67      
2 A' 1821 1802 233.68      
3 A' 1268 1255 0.92      
4 A' 1033 1023 109.55      
5 A' 566 560 26.26      
6 A" 603 597 88.27      

Unscaled Zero Point Vibrational Energy (zpe) 4358.2 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 4313.3 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 PBEPBEultrafine/6-31G(2df,p)
ABC
4.66108 0.38669 0.35707

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.444 0.000
O2 -1.072 -0.350 0.000
O3 1.167 0.178 0.000
H4 -0.762 -1.289 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33391.19721.8926
O21.33392.30060.9887
O31.19722.30062.4230
H41.89260.98872.4230

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 108.228 O2 C1 O3 130.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.125      
2 O -0.261      
3 O -0.163      
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
  -0.949 -1.674 0.000 1.924
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.159 0.687 0.000
y 0.687 -13.726 0.000
z 0.000 0.000 -15.837
Traceless
 xyz
x -4.377 0.687 0.000
y 0.687 3.772 0.000
z 0.000 0.000 0.605
Polar
3z2-r21.209
x2-y2-5.433
xy0.687
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.317 0.343 0.000
y 0.343 2.859 0.000
z 0.000 0.000 1.740


<r2> (average value of r2) Å2
<r2> 34.892
(<r2>)1/2 5.907

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBEPBEultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-188.914686
Energy at 298.15K-188.915735
HF Energy-188.914686
Nuclear repulsion energy62.403701
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/6-31G(2df,p)
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' 3690 3652 84.05      
2 A' 1848 1829 159.55      
3 A' 1204 1191 218.23      
4 A' 1069 1058 45.43      
5 A' 593 587 4.11      
6 A" 551 546 79.88      

Unscaled Zero Point Vibrational Energy (zpe) 4478.0 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 4431.9 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/6-31G(2df,p)
ABC
5.29882 0.37812 0.35293

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.418 0.000
O2 -0.953 -0.542 0.000
O3 1.180 0.240 0.000
H4 -1.816 -0.089 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.35311.19311.8855
O21.35312.27140.9748
O31.19312.27143.0136
H41.88550.97483.0136

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 107.065 O2 C1 O3 126.160
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.075      
2 O -0.260      
3 O -0.138      
4 H 0.323      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.820 0.221 0.000 2.829
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.379 -0.923 0.000
y -0.923 -17.294 0.000
z 0.000 0.000 -15.880
Traceless
 xyz
x 3.209 -0.923 0.000
y -0.923 -2.665 0.000
z 0.000 0.000 -0.544
Polar
3z2-r2-1.088
x2-y23.916
xy-0.923
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.835 0.234 0.000
y 0.234 2.208 0.000
z 0.000 0.000 1.759


<r2> (average value of r2) Å2
<r2> 35.257
(<r2>)1/2 5.938