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

using model chemistry: B3PW91/6-311+G(3df,2p)

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 B3PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.094367
Energy at 298.15K-189.095462
HF Energy-189.094367
Nuclear repulsion energy63.486980
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 B3PW91/6-311+G(3df,2p)
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' 3628 3473 19.02      
2 A' 1894 1813 344.97      
3 A' 1295 1240 0.05      
4 A' 1092 1045 163.00      
5 A' 601 575 33.29      
6 A" 595 569 106.68      

Unscaled Zero Point Vibrational Energy (zpe) 4551.8 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 4357.5 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 B3PW91/6-311+G(3df,2p)
ABC
4.84035 0.39540 0.36554

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.436 0.000
O2 -1.056 -0.352 0.000
O3 1.153 0.186 0.000
H4 -0.769 -1.283 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.31801.17941.8835
O21.31802.27340.9744
O31.17942.27342.4188
H41.88350.97442.4188

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 109.586 O2 C1 O3 131.014
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.641      
2 O -0.378      
3 O -0.486      
4 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.090 -1.681 0.000 2.003
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.181 0.796 0.000
y 0.796 -14.048 0.000
z 0.000 0.000 -16.334
Traceless
 xyz
x -4.991 0.796 0.000
y 0.796 4.210 0.000
z 0.000 0.000 0.780
Polar
3z2-r21.561
x2-y2-6.134
xy0.796
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.918 0.196 0.000
y 0.196 3.420 0.000
z 0.000 0.000 2.348


<r2> (average value of r2) Å2
<r2> 34.727
(<r2>)1/2 5.893

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.097287
Energy at 298.15K-189.098370
HF Energy-189.097287
Nuclear repulsion energy63.244582
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 B3PW91/6-311+G(3df,2p)
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' 3840 3676 127.76      
2 A' 1929 1847 253.64      
3 A' 1243 1190 257.21      
4 A' 1109 1061 55.05      
5 A' 626 599 4.43      
6 A" 554 530 85.18      

Unscaled Zero Point Vibrational Energy (zpe) 4650.3 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 4451.7 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 B3PW91/6-311+G(3df,2p)
ABC
5.68838 0.38546 0.36100

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.405 0.000
O2 -0.939 -0.541 0.000
O3 1.165 0.253 0.000
H4 -1.804 -0.118 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33291.17451.8783
O21.33292.24860.9633
O31.17452.24862.9919
H41.87830.96332.9919

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 108.706 O2 C1 O3 127.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.597      
2 O -0.381      
3 O -0.469      
4 H 0.253      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.006 0.283 0.000 3.020
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.041 -0.930 0.000
y -0.930 -18.087 0.000
z 0.000 0.000 -16.387
Traceless
 xyz
x 3.196 -0.930 0.000
y -0.930 -2.873 0.000
z 0.000 0.000 -0.323
Polar
3z2-r2-0.645
x2-y24.046
xy-0.930
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.298 0.136 0.000
y 0.136 2.981 0.000
z 0.000 0.000 2.401


<r2> (average value of r2) Å2
<r2> 35.113
(<r2>)1/2 5.926