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

using model chemistry: CCD/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-188.613117
Energy at 298.15K-188.614211
HF Energy-188.138723
Nuclear repulsion energy62.952373
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/6-31+G**
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' 3766 3549 47.32      
2 A' 1932 1820 386.32      
3 A' 1320 1244 0.46      
4 A' 1117 1053 219.51      
5 A' 612 576 38.03      
6 A" 582 548 142.14      

Unscaled Zero Point Vibrational Energy (zpe) 4663.9 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 4394.8 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/6-31+G**
ABC
4.69321 0.38940 0.35957

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.445 0.000
O2 -1.065 -0.360 0.000
O3 1.160 0.187 0.000
H4 -0.761 -1.284 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33521.18871.8895
O21.33522.29150.9731
O31.18872.29152.4197
H41.88950.97312.4197

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 108.871 O2 C1 O3 130.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-188.615904
Energy at 298.15K-188.616973
HF Energy-188.138982
Nuclear repulsion energy62.727174
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/6-31+G**
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' 3903 3678 131.51      
2 A' 1968 1855 270.38      
3 A' 1277 1203 269.92      
4 A' 1116 1052 75.97      
5 A' 620 585 4.64      
6 A" 540 509 104.53      

Unscaled Zero Point Vibrational Energy (zpe) 4712.6 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 4440.7 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 CCD/6-31+G**
ABC
5.55089 0.37931 0.35505

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.411 0.000
O2 -0.947 -0.548 0.000
O3 1.173 0.255 0.000
H4 -1.813 -0.123 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34721.18351.8904
O21.34722.26710.9652
O31.18352.26713.0107
H41.89040.96523.0107

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 108.547 O2 C1 O3 127.114
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability