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

using model chemistry: PBE1PBE/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 PBE1PBE/cc-pVTZ
 hartrees
Energy at 0K-188.966840
Energy at 298.15K-188.967950
HF Energy-188.966840
Nuclear repulsion energy63.524992
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/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' 3645 3503 22.52      
2 A' 1913 1838 329.23      
3 A' 1312 1261 0.05      
4 A' 1110 1067 159.41      
5 A' 608 584 33.51      
6 A" 605 581 107.62      

Unscaled Zero Point Vibrational Energy (zpe) 4596.2 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 4416.9 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/cc-pVTZ
ABC
4.81334 0.39646 0.36629

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.437 0.000
O2 -1.056 -0.350 0.000
O3 1.152 0.182 0.000
H4 -0.762 -1.278 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.31751.17961.8768
O21.31752.27100.9737
O31.17962.27102.4063
H41.87680.97372.4063

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 109.074 O2 C1 O3 130.780
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.167      
2 O -0.190      
3 O -0.186      
4 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.078 -1.707 0.000 2.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.889 0.688 0.000
y 0.688 -13.856 0.000
z 0.000 0.000 -16.102
Traceless
 xyz
x -4.910 0.688 0.000
y 0.688 4.139 0.000
z 0.000 0.000 0.771
Polar
3z2-r21.542
x2-y2-6.033
xy0.688
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.429 0.232 0.000
y 0.232 2.925 0.000
z 0.000 0.000 1.872


<r2> (average value of r2) Å2
<r2> 34.518
(<r2>)1/2 5.875

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBE1PBE/cc-pVTZ
 hartrees
Energy at 0K-188.969097
Energy at 298.15K-188.970188
HF Energy-188.969097
Nuclear repulsion energy63.266371
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/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' 3854 3704 128.00      
2 A' 1946 1871 237.52      
3 A' 1256 1207 269.37      
4 A' 1128 1084 44.50      
5 A' 630 606 4.07      
6 A" 555 533 86.31      

Unscaled Zero Point Vibrational Energy (zpe) 4684.9 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 4502.2 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/cc-pVTZ
ABC
5.65486 0.38615 0.36146

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.405 0.000
O2 -0.939 -0.540 0.000
O3 1.164 0.250 0.000
H4 -1.801 -0.111 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33251.17481.8735
O21.33252.24690.9625
O31.17482.24692.9872
H41.87350.96252.9872

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 108.358 O2 C1 O3 127.199
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.094      
2 O -0.157      
3 O -0.161      
4 H 0.224      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.015 0.278 0.000 3.028
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.766 -0.979 0.000
y -0.979 -17.734 0.000
z 0.000 0.000 -16.141
Traceless
 xyz
x 3.172 -0.979 0.000
y -0.979 -2.781 0.000
z 0.000 0.000 -0.391
Polar
3z2-r2-0.782
x2-y23.968
xy-0.979
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.866 0.162 0.000
y 0.162 2.383 0.000
z 0.000 0.000 1.891


<r2> (average value of r2) Å2
<r2> 34.894
(<r2>)1/2 5.907