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

using model chemistry: B2PLYP=FULL/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=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-189.067193
Energy at 298.15K-189.068279
HF Energy-188.852021
Nuclear repulsion energy63.199012
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=FULL/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' 3621 3474 28.29      
2 A' 1847 1772 315.82      
3 A' 1301 1248 0.28      
4 A' 1072 1029 178.14      
5 A' 600 576 31.62      
6 A" 582 559 105.74      

Unscaled Zero Point Vibrational Energy (zpe) 4511.7 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 4328.5 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 B2PLYP=FULL/aug-cc-pVTZ
ABC
4.76869 0.39208 0.36229

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.440 0.000
O2 -1.061 -0.356 0.000
O3 1.157 0.186 0.000
H4 -0.764 -1.284 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32681.18441.8863
O21.32682.28340.9746
O31.18442.28342.4193
H41.88630.97462.4193

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 109.135 O2 C1 O3 130.734
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B2PLYP=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-189.070255
Energy at 298.15K-189.071326
HF Energy-188.854377
Nuclear repulsion energy62.958701
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=FULL/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' 3808 3653 131.38      
2 A' 1884 1808 227.79      
3 A' 1243 1193 237.83      
4 A' 1083 1039 78.56      
5 A' 618 593 4.89      
6 A" 545 523 85.48      

Unscaled Zero Point Vibrational Energy (zpe) 4590.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 4404.4 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=FULL/aug-cc-pVTZ
ABC
5.57666 0.38243 0.35789

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.409 0.000
O2 -0.943 -0.545 0.000
O3 1.169 0.253 0.000
H4 -1.807 -0.118 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34171.17931.8828
O21.34172.25780.9643
O31.17932.25782.9995
H41.88280.96432.9995

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 108.356 O2 C1 O3 127.060
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability