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

using model chemistry: HF/LANL2DZ

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 HF/LANL2DZ
 hartrees
Energy at 0K-188.067028
Energy at 298.15K-188.068111
HF Energy-188.067028
Nuclear repulsion energy62.646637
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 HF/LANL2DZ
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' 3943 3549 101.45      
2 A' 1912 1720 502.55      
3 A' 1354 1219 14.89      
4 A' 1118 1006 288.53      
5 A' 620 558 67.89      
6 A" 562 506 274.11      

Unscaled Zero Point Vibrational Energy (zpe) 4754.4 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 4278.4 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 HF/LANL2DZ
ABC
4.88054 0.38121 0.35359

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.438 0.000
O2 -1.060 -0.372 0.000
O3 1.172 0.209 0.000
H4 -0.895 -1.319 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33461.19441.9718
O21.33462.30670.9605
O31.19442.30672.5702
H41.97180.96052.5702

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 117.511 O2 C1 O3 131.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.471      
2 O -0.565      
3 O -0.344      
4 H 0.438      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.411 -1.855 0.000 2.331
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.004 0.891 0.000
y 0.891 -13.108 0.000
z 0.000 0.000 -16.221
Traceless
 xyz
x -8.340 0.891 0.000
y 0.891 6.505 0.000
z 0.000 0.000 1.835
Polar
3z2-r23.671
x2-y2-9.897
xy0.891
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.988 0.175 0.000
y 0.175 2.142 0.000
z 0.000 0.000 1.187


<r2> (average value of r2) Å2
<r2> 36.028
(<r2>)1/2 6.002

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-188.069840
Energy at 298.15K-188.070899
HF Energy-188.069840
Nuclear repulsion energy62.500858
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 HF/LANL2DZ
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' 4077 3669 171.73      
2 A' 1985 1786 358.10      
3 A' 1269 1142 326.24      
4 A' 1115 1003 110.56      
5 A' 648 583 9.51      
6 A" 512 461 174.09      

Unscaled Zero Point Vibrational Energy (zpe) 4803.3 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 4322.5 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 HF/LANL2DZ
ABC
6.05726 0.37052 0.34916

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.402 0.000
O2 -0.948 -0.557 0.000
O3 1.179 0.286 0.000
H4 -1.848 -0.243 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34891.18501.9573
O21.34892.28900.9533
O31.18502.28903.0735
H41.95730.95333.0735

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 115.391 O2 C1 O3 129.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.393      
2 O -0.541      
3 O -0.298      
4 H 0.446      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.940 0.942 0.000 4.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.768 -1.507 0.000
y -1.507 -18.607 0.000
z 0.000 0.000 -16.257
Traceless
 xyz
x 2.665 -1.507 0.000
y -1.507 -3.095 0.000
z 0.000 0.000 0.430
Polar
3z2-r20.861
x2-y23.840
xy-1.507
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.495 0.156 0.000
y 0.156 1.879 0.000
z 0.000 0.000 1.220


<r2> (average value of r2) Å2
<r2> 36.242
(<r2>)1/2 6.020