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

using model chemistry: PBE1PBE/6-31G

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 PBE1PBE/6-31G
 hartrees
Energy at 0K-188.809864
Energy at 298.15K-188.810923
HF Energy-188.809864
Nuclear repulsion energy62.040217
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 PBE1PBE/6-31G
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' 3473 3320 5.73      
2 A' 1801 1721 294.88      
3 A' 1290 1233 3.04      
4 A' 1033 987 176.92      
5 A' 578 552 43.32      
6 A" 584 559 186.44      

Unscaled Zero Point Vibrational Energy (zpe) 4379.0 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 4185.9 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 PBE1PBE/6-31G
ABC
4.68071 0.37639 0.34837

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.444 0.000
O2 -1.074 -0.361 0.000
O3 1.183 0.194 0.000
H4 -0.871 -1.328 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34261.20941.9744
O21.34262.32460.9879
O31.20942.32462.5561
H41.97440.98792.5561

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 114.967 O2 C1 O3 131.189
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.499      
2 O -0.551      
3 O -0.351      
4 H 0.402      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.002 -2.090 0.000 2.317
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.374 1.016 0.000
y 1.016 -13.406 0.000
z 0.000 0.000 -16.011
Traceless
 xyz
x -6.665 1.016 0.000
y 1.016 5.287 0.000
z 0.000 0.000 1.379
Polar
3z2-r22.757
x2-y2-7.968
xy1.016
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.154 0.339 0.000
y 0.339 2.382 0.000
z 0.000 0.000 1.162


<r2> (average value of r2) Å2
<r2> 36.054
(<r2>)1/2 6.005

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBE1PBE/6-31G
 hartrees
Energy at 0K-188.813736
Energy at 298.15K-188.814785
HF Energy-188.813736
Nuclear repulsion energy61.880000
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 PBE1PBE/6-31G
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' 3727 3563 98.53      
2 A' 1856 1774 185.65      
3 A' 1192 1139 235.67      
4 A' 1069 1022 100.01      
5 A' 605 579 7.92      
6 A" 546 522 147.06      

Unscaled Zero Point Vibrational Energy (zpe) 4497.5 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 4299.2 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 PBE1PBE/6-31G
ABC
5.47798 0.36857 0.34534

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.418 0.000
O2 -0.959 -0.549 0.000
O3 1.191 0.257 0.000
H4 -1.856 -0.170 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.36211.20191.9471
O21.36212.29660.9742
O31.20192.29663.0773
H41.94710.97423.0773

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 111.831 O2 C1 O3 127.088
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.453      
2 O -0.543      
3 O -0.335      
4 H 0.425      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.399 0.566 0.000 3.446
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.737 -1.208 0.000
y -1.208 -18.223 0.000
z 0.000 0.000 -16.026
Traceless
 xyz
x 3.387 -1.208 0.000
y -1.208 -3.341 0.000
z 0.000 0.000 -0.046
Polar
3z2-r2-0.092
x2-y24.486
xy-1.208
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.684 0.238 0.000
y 0.238 1.782 0.000
z 0.000 0.000 1.180


<r2> (average value of r2) Å2
<r2> 36.167
(<r2>)1/2 6.014