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

using model chemistry: B2PLYP=FULL/6-311G**

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/6-311G**
 hartrees
Energy at 0K-189.013296
Energy at 298.15K-189.014399
HF Energy-188.826799
Nuclear repulsion energy63.164903
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/6-311G**
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' 3656 3656 23.02      
2 A' 1864 1864 286.11      
3 A' 1315 1315 1.53      
4 A' 1086 1086 167.80      
5 A' 607 607 34.22      
6 A" 602 602 116.04      

Unscaled Zero Point Vibrational Energy (zpe) 4565.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4565.0 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 B2PLYP=FULL/6-311G**
ABC
4.69424 0.39281 0.36248

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.445 0.000
O2 -1.063 -0.355 0.000
O3 1.156 0.181 0.000
H4 -0.749 -1.276 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32961.18601.8768
O21.32962.28250.9737
O31.18602.28252.3983
H41.87680.97372.3983

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 108.147 O2 C1 O3 130.197
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-311G**
 hartrees
Energy at 0K-189.015588
Energy at 298.15K-189.016660
HF Energy-188.828332
Nuclear repulsion energy62.872368
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/6-311G**
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' 3847 3847 122.27      
2 A' 1897 1897 198.21      
3 A' 1257 1257 248.90      
4 A' 1091 1091 67.01      
5 A' 622 622 5.34      
6 A" 545 545 95.21      

Unscaled Zero Point Vibrational Energy (zpe) 4629.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4629.0 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 B2PLYP=FULL/6-311G**
ABC
5.50590 0.38182 0.35706

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.411 0.000
O2 -0.945 -0.546 0.000
O3 1.170 0.252 0.000
H4 -1.803 -0.108 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34531.18101.8759
O21.34532.26050.9632
O31.18102.26052.9944
H41.87590.96322.9944

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 107.544 O2 C1 O3 126.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability