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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-188.545969
Energy at 298.15K-188.547099
HF Energy-188.126438
Nuclear repulsion energy63.292111
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 CID/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' 3749 3463 52.66      
2 A' 1996 1844 353.52      
3 A' 1372 1267 0.11      
4 A' 1168 1079 213.74      
5 A' 629 581 43.43      
6 A" 620 573 153.90      

Unscaled Zero Point Vibrational Energy (zpe) 4766.8 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 4403.1 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 CID/6-31G*
ABC
4.71150 0.39442 0.36395

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.444 0.000
O2 -1.059 -0.356 0.000
O3 1.153 0.183 0.000
H4 -0.753 -1.281 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32731.18221.8816
O21.32732.27710.9737
O31.18222.27712.4034
H41.88160.97372.4034

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 108.741 O2 C1 O3 130.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-188.546974
Energy at 298.15K-188.548065
HF Energy-188.125994
Nuclear repulsion energy63.035124
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 CID/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' 3892 3595 132.06      
2 A' 2034 1879 243.41      
3 A' 1327 1226 310.99      
4 A' 1161 1072 52.35      
5 A' 641 592 4.46      
6 A" 552 510 105.08      

Unscaled Zero Point Vibrational Energy (zpe) 4803.5 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 4437.0 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 CID/6-31G*
ABC
5.64041 0.38288 0.35854

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.407 0.000
O2 -0.941 -0.546 0.000
O3 1.168 0.256 0.000
H4 -1.809 -0.123 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33921.17721.8850
O21.33922.25620.9653
O31.17722.25623.0007
H41.88500.96533.0007

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 108.680 O2 C1 O3 127.306
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability