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

using model chemistry: CCSD/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-188.814592
Energy at 298.15K-188.815686
HF Energy-188.215070
Nuclear repulsion energy63.347992
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/Def2TZVPP
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' 3721 3721 39.37      
2 A' 1908 1908 325.67      
3 A' 1335 1335 0.06      
4 A' 1103 1103 193.77      
5 A' 614 614 34.34      
6 A" 578 578 113.39      

Unscaled Zero Point Vibrational Energy (zpe) 4629.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4629.1 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 CCSD/Def2TZVPP
ABC
4.77221 0.39398 0.36393

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.441 0.000
O2 -1.059 -0.360 0.000
O3 1.152 0.189 0.000
H4 -0.745 -1.277 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32831.17961.8725
O21.32832.27870.9690
O31.17962.27872.3972
H41.87250.96902.3972

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 108.176 O2 C1 O3 130.524
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCSD/Def2TZVPP
 hartrees
Energy at 0K-188.817275
Energy at 298.15K-188.818345
HF Energy-188.215890
Nuclear repulsion energy63.115670
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/Def2TZVPP
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' 3879 3879 128.40      
2 A' 1949 1949 237.66      
3 A' 1281 1281 245.72      
4 A' 1108 1108 77.65      
5 A' 631 631 5.03      
6 A" 531 531 87.33      

Unscaled Zero Point Vibrational Energy (zpe) 4689.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4689.8 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 CCSD/Def2TZVPP
ABC
5.64450 0.38355 0.35914

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.406 0.000
O2 -0.940 -0.549 0.000
O3 1.165 0.260 0.000
H4 -1.798 -0.118 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34061.17421.8732
O21.34062.25540.9602
O31.17422.25542.9873
H41.87320.96022.9873

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 107.860 O2 C1 O3 127.358
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability