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

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-188.589469
Energy at 298.15K-188.590577
HF Energy-188.125309
Nuclear repulsion energy62.927379
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 CCD/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' 3643 3448 37.85      
2 A' 1953 1848 313.98      
3 A' 1349 1277 0.34      
4 A' 1133 1072 202.07      
5 A' 614 581 39.03      
6 A" 607 574 144.67      

Unscaled Zero Point Vibrational Energy (zpe) 4649.0 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 4400.3 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 CCD/6-31G*
ABC
4.64095 0.39022 0.35996

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.447 0.000
O2 -1.065 -0.358 0.000
O3 1.159 0.184 0.000
H4 -0.750 -1.287 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33571.18871.8901
O21.33572.28970.9810
O31.18872.28972.4108
H41.89010.98102.4108

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 108.372 O2 C1 O3 130.106
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-188.590994
Energy at 298.15K-188.592065
HF Energy-188.124724
Nuclear repulsion energy62.657428
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 CCD/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' 3787 3585 109.37      
2 A' 1987 1880 204.83      
3 A' 1303 1233 282.00      
4 A' 1128 1068 65.41      
5 A' 623 590 4.15      
6 A" 546 516 103.79      

Unscaled Zero Point Vibrational Energy (zpe) 4686.6 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 4435.8 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 CCD/6-31G*
ABC
5.48093 0.37936 0.35480

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.412 0.000
O2 -0.946 -0.549 0.000
O3 1.173 0.254 0.000
H4 -1.816 -0.115 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34911.18401.8915
O21.34912.26690.9724
O31.18402.26693.0126
H41.89150.97243.0126

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 108.026 O2 C1 O3 126.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability