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

using model chemistry: MP3=FULL/cc-pVTZ

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 MP3=FULL/cc-pVTZ
 hartrees
Energy at 0K-188.839208
Energy at 298.15K-188.840335
HF Energy-188.206808
Nuclear repulsion energy63.762703
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 MP3=FULL/cc-pVTZ
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' 3791 3535 49.13      
2 A' 1985 1852 357.99      
3 A' 1349 1258 0.09      
4 A' 1141 1064 196.00      
5 A' 630 588 36.05      
6 A" 601 560 116.63      

Unscaled Zero Point Vibrational Energy (zpe) 4748.3 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 4428.3 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 MP3=FULL/cc-pVTZ
ABC
4.86728 0.39867 0.36849

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.437 0.000
O2 -1.052 -0.359 0.000
O3 1.145 0.191 0.000
H4 -0.743 -1.274 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.31911.17091.8647
O21.31912.26480.9653
O31.17092.26482.3895
H41.86470.96532.3895

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 108.430 O2 C1 O3 130.798
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP3=FULL/cc-pVTZ
 hartrees
Energy at 0K-188.841711
Energy at 298.15K-188.842814
HF Energy-188.207393
Nuclear repulsion energy63.516996
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 MP3=FULL/cc-pVTZ
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' 3940 3674 139.42      
2 A' 2022 1886 257.74      
3 A' 1298 1210 268.57      
4 A' 1148 1071 61.95      
5 A' 646 602 3.98      
6 A" 553 515 87.03      

Unscaled Zero Point Vibrational Energy (zpe) 4802.8 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 4479.1 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 MP3=FULL/cc-pVTZ
ABC
5.78613 0.38775 0.36340

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.401 0.000
O2 -0.934 -0.547 0.000
O3 1.158 0.262 0.000
H4 -1.790 -0.119 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33091.16621.8634
O21.33092.24310.9567
O31.16622.24312.9719
H41.86340.95672.9719

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 107.969 O2 C1 O3 127.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability