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

using model chemistry: PBE1PBE/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-188.908262
Energy at 298.15K-188.909381
HF Energy-188.908262
Nuclear repulsion energy63.308222
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-pVDZ
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' 3610 3471 23.39      
2 A' 1921 1847 315.90      
3 A' 1319 1268 0.45      
4 A' 1128 1085 148.63      
5 A' 609 585 33.37      
6 A" 618 594 108.92      

Unscaled Zero Point Vibrational Energy (zpe) 4601.9 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 4424.7 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 PBE1PBE/cc-pVDZ
ABC
4.69857 0.39543 0.36473

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.443 0.000
O2 -1.061 -0.344 0.000
O3 1.155 0.172 0.000
H4 -0.748 -1.273 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32131.18621.8718
O21.32132.27550.9799
O31.18622.27552.3894
H41.87180.97992.3894

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 107.937 O2 C1 O3 130.231
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.144      
2 O -0.139      
3 O -0.167      
4 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.989 -1.721 0.000 1.985
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.619 0.614 0.000
y 0.614 -13.688 0.000
z 0.000 0.000 -15.811
Traceless
 xyz
x -4.869 0.614 0.000
y 0.614 4.027 0.000
z 0.000 0.000 0.842
Polar
3z2-r21.684
x2-y2-5.930
xy0.614
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.026 0.238 0.000
y 0.238 2.515 0.000
z 0.000 0.000 1.422


<r2> (average value of r2) Å2
<r2> 34.448
(<r2>)1/2 5.869

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBE1PBE/cc-pVDZ
 hartrees
Energy at 0K-188.909800
Energy at 298.15K-188.910887
HF Energy-188.909800
Nuclear repulsion energy63.014819
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-pVDZ
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' 3826 3678 128.03      
2 A' 1950 1875 226.58      
3 A' 1264 1215 278.25      
4 A' 1135 1092 27.69      
5 A' 627 602 3.92      
6 A" 554 533 87.59      

Unscaled Zero Point Vibrational Energy (zpe) 4678.0 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 4497.9 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-pVDZ
ABC
5.49820 0.38456 0.35942

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.410 0.000
O2 -0.944 -0.537 0.000
O3 1.169 0.241 0.000
H4 -1.803 -0.090 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33731.18151.8709
O21.33732.25220.9683
O31.18152.25222.9906
H41.87090.96832.9906

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 107.402 O2 C1 O3 126.688
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.090      
2 O -0.128      
3 O -0.146      
4 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.964 0.330 0.000 2.983
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.515 -1.065 0.000
y -1.065 -17.410 0.000
z 0.000 0.000 -15.839
Traceless
 xyz
x 3.110 -1.065 0.000
y -1.065 -2.733 0.000
z 0.000 0.000 -0.376
Polar
3z2-r2-0.753
x2-y23.896
xy-1.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.529 0.166 0.000
y 0.166 1.911 0.000
z 0.000 0.000 1.440


<r2> (average value of r2) Å2
<r2> 34.846
(<r2>)1/2 5.903