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

using model chemistry: B2PLYP/aug-cc-pVTZ

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 B2PLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-189.053919
Energy at 298.15K-189.055003
HF Energy-188.851884
Nuclear repulsion energy63.128906
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 B2PLYP/aug-cc-pVTZ
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' 3616 3475 28.73      
2 A' 1841 1769 313.76      
3 A' 1299 1248 0.28      
4 A' 1069 1027 178.50      
5 A' 599 576 31.30      
6 A" 580 558 105.61      

Unscaled Zero Point Vibrational Energy (zpe) 4501.2 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 4325.6 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 B2PLYP/aug-cc-pVTZ
ABC
4.74656 0.39138 0.36157

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.442 0.000
O2 -1.062 -0.357 0.000
O3 1.158 0.186 0.000
H4 -0.763 -1.285 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32881.18571.8873
O21.32882.28560.9753
O31.18572.28562.4191
H41.88730.97532.4191

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 109.023 O2 C1 O3 130.642
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.234      
2 O -0.170      
3 O -0.257      
4 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.000 -1.646 0.000 1.926
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.382 0.753 0.000
y 0.753 -14.253 0.000
z 0.000 0.000 -16.526
Traceless
 xyz
x -4.992 0.753 0.000
y 0.753 4.201 0.000
z 0.000 0.000 0.791
Polar
3z2-r21.583
x2-y2-6.129
xy0.753
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.028 0.193 0.000
y 0.193 3.460 0.000
z 0.000 0.000 2.441


<r2> (average value of r2) Å2
<r2> 35.102
(<r2>)1/2 5.925

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B2PLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-189.057039
Energy at 298.15K-189.058108
HF Energy-188.854241
Nuclear repulsion energy62.889900
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 B2PLYP/aug-cc-pVTZ
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' 3801 3653 130.72      
2 A' 1878 1805 226.45      
3 A' 1244 1195 236.63      
4 A' 1080 1038 79.28      
5 A' 618 594 4.90      
6 A" 544 523 85.44      

Unscaled Zero Point Vibrational Energy (zpe) 4582.0 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 4403.3 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 B2PLYP/aug-cc-pVTZ
ABC
5.55199 0.38173 0.35717

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.410 0.000
O2 -0.944 -0.546 0.000
O3 1.170 0.253 0.000
H4 -1.809 -0.118 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34341.18061.8846
O21.34342.25990.9651
O31.18062.25993.0022
H41.88460.96513.0022

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 108.333 O2 C1 O3 126.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.204      
2 O -0.195      
3 O -0.246      
4 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.922 0.329 0.000 2.940
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.232 -0.957 0.000
y -0.957 -18.282 0.000
z 0.000 0.000 -16.587
Traceless
 xyz
x 3.202 -0.957 0.000
y -0.957 -2.873 0.000
z 0.000 0.000 -0.329
Polar
3z2-r2-0.659
x2-y24.050
xy-0.957
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.431 0.166 0.000
y 0.166 3.057 0.000
z 0.000 0.000 2.483


<r2> (average value of r2) Å2
<r2> 35.495
(<r2>)1/2 5.958