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

using model chemistry: CCSD=FULL/daug-cc-pVDZ

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 CCSD=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-188.683165
Energy at 298.15K-188.684249
HF Energy-188.162072
Nuclear repulsion energy62.751561
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 CCSD=FULL/daug-cc-pVDZ
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' 3671 3671 34.05      
2 A' 1870 1870 329.76      
3 A' 1320 1320 0.96      
4 A' 1073 1073 193.81      
5 A' 602 602 30.69      
6 A" 572 572 108.54      

Unscaled Zero Point Vibrational Energy (zpe) 4554.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4554.4 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 CCSD=FULL/daug-cc-pVDZ
ABC
4.68909 0.38639 0.35697

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.446 0.000
O2 -1.070 -0.364 0.000
O3 1.163 0.191 0.000
H4 -0.750 -1.286 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34161.19091.8873
O21.34162.30110.9757
O31.19092.30112.4175
H41.88730.97572.4175

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 108.021 O2 C1 O3 130.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCSD=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-188.685848
Energy at 298.15K-188.686908
HF Energy-188.162832
Nuclear repulsion energy62.522124
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 CCSD=FULL/daug-cc-pVDZ
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' 3824 3824 117.55      
2 A' 1909 1909 243.63      
3 A' 1274 1274 234.78      
4 A' 1069 1069 86.05      
5 A' 613 613 5.15      
6 A" 530 530 83.56      

Unscaled Zero Point Vibrational Energy (zpe) 4610.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4610.0 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 CCSD=FULL/daug-cc-pVDZ
ABC
5.50905 0.37659 0.35250

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.411 0.000
O2 -0.949 -0.554 0.000
O3 1.176 0.260 0.000
H4 -1.812 -0.118 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.35431.18571.8879
O21.35432.27630.9671
O31.18572.27633.0122
H41.88790.96713.0122

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 107.671 O2 C1 O3 127.206
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability