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

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-188.067379
Energy at 298.15K-188.068464
HF Energy-188.067379
Nuclear repulsion energy62.643738
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/SDD
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 3550 102.19      
2 A' 1912 1722 505.37      
3 A' 1354 1219 15.18      
4 A' 1118 1006 289.22      
5 A' 620 558 67.67      
6 A" 562 506 273.94      

Unscaled Zero Point Vibrational Energy (zpe) 4754.3 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 4280.8 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 HF/SDD
ABC
4.87863 0.38119 0.35356

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.438 0.000
O2 -1.060 -0.373 0.000
O3 1.172 0.209 0.000
H4 -0.895 -1.319 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33481.19441.9719
O21.33482.30670.9605
O31.19442.30672.5702
H41.97190.96052.5702

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 117.512 O2 C1 O3 131.502
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.474      
2 O -0.568      
3 O -0.345      
4 H 0.439      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.409 -1.852 0.000 2.327
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.996 0.890 0.000
y 0.890 -13.103 0.000
z 0.000 0.000 -16.220
Traceless
 xyz
x -8.335 0.890 0.000
y 0.890 6.505 0.000
z 0.000 0.000 1.830
Polar
3z2-r23.660
x2-y2-9.893
xy0.890
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.989 0.174 0.000
y 0.174 2.148 0.000
z 0.000 0.000 1.195


<r2> (average value of r2) Å2
<r2> 36.027
(<r2>)1/2 6.002

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HF/SDD
 hartrees
Energy at 0K-188.070177
Energy at 298.15K-188.071236
HF Energy-188.070177
Nuclear repulsion energy62.499577
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/SDD
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 3671 172.33      
2 A' 1985 1788 360.82      
3 A' 1269 1143 327.07      
4 A' 1115 1004 110.59      
5 A' 648 584 9.54      
6 A" 512 461 174.07      

Unscaled Zero Point Vibrational Energy (zpe) 4803.3 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 4324.9 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 HF/SDD
ABC
6.05704 0.37051 0.34915

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

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
C11.34901.18501.9576
O21.34902.28900.9533
O31.18502.28903.0737
H41.95760.95333.0737

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 115.411 O2 C1 O3 129.081
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.395      
2 O -0.543      
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
  -3.938 0.941 0.000 4.049
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.755 -1.504 0.000
y -1.504 -18.607 0.000
z 0.000 0.000 -16.258
Traceless
 xyz
x 2.677 -1.504 0.000
y -1.504 -3.100 0.000
z 0.000 0.000 0.423
Polar
3z2-r20.847
x2-y23.852
xy-1.504
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.497 0.155 0.000
y 0.155 1.885 0.000
z 0.000 0.000 1.227


<r2> (average value of r2) Å2
<r2> 36.240
(<r2>)1/2 6.020