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

using model chemistry: B3PW91/6-311G*

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 B3PW91/6-311G*
 hartrees
Energy at 0K-189.067782
Energy at 298.15K-189.068897
HF Energy-189.067782
Nuclear repulsion energy63.383641
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3573 3440 5.72      
2 A' 1902 1831 331.64      
3 A' 1307 1259 1.51      
4 A' 1106 1065 160.11      
5 A' 603 580 37.59      
6 A" 629 606 135.09      

Unscaled Zero Point Vibrational Energy (zpe) 4560.0 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 4389.9 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 B3PW91/6-311G*
ABC
4.75225 0.39537 0.36500

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.441 0.000
O2 -1.057 -0.351 0.000
O3 1.153 0.181 0.000
H4 -0.772 -1.285 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32061.18211.8905
O21.32062.27340.9764
O31.18212.27342.4201
H41.89050.97642.4201

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 109.874 O2 C1 O3 130.488
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.307      
2 O -0.445      
3 O -0.254      
4 H 0.392      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.921 -1.847 0.000 2.064
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.272 0.744 0.000
y 0.744 -13.632 0.000
z 0.000 0.000 -16.010
Traceless
 xyz
x -5.451 0.744 0.000
y 0.744 4.509 0.000
z 0.000 0.000 0.942
Polar
3z2-r21.885
x2-y2-6.640
xy0.744
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.166 0.261 0.000
y 0.261 2.651 0.000
z 0.000 0.000 1.487


<r2> (average value of r2) Å2
<r2> 34.631
(<r2>)1/2 5.885

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-189.069801
Energy at 298.15K-189.070889
HF Energy-189.069801
Nuclear repulsion energy63.085934
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3806 3664 85.71      
2 A' 1935 1863 222.59      
3 A' 1265 1218 281.56      
4 A' 1104 1062 53.32      
5 A' 626 602 5.11      
6 A" 569 547 110.13      

Unscaled Zero Point Vibrational Energy (zpe) 4651.8 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 4478.3 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 B3PW91/6-311G*
ABC
5.58222 0.38434 0.35959

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.410 0.000
O2 -0.940 -0.544 0.000
O3 1.166 0.252 0.000
H4 -1.809 -0.126 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33881.17671.8871
O21.33882.25130.9642
O31.17672.25132.9993
H41.88710.96422.9993

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 108.963 O2 C1 O3 126.879
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.253      
2 O -0.441      
3 O -0.234      
4 H 0.423      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.094 0.421 0.000 3.122
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.488 -1.084 0.000
y -1.084 -17.836 0.000
z 0.000 0.000 -16.055
Traceless
 xyz
x 3.457 -1.084 0.000
y -1.084 -3.064 0.000
z 0.000 0.000 -0.393
Polar
3z2-r2-0.785
x2-y24.348
xy-1.084
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.679 0.188 0.000
y 0.188 2.005 0.000
z 0.000 0.000 1.519


<r2> (average value of r2) Å2
<r2> 34.979
(<r2>)1/2 5.914