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

using model chemistry: MP3=FULL/6-31G**

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/6-31G**
 hartrees
Energy at 0K-188.606340
Energy at 298.15K-188.607459
HF Energy-188.132774
Nuclear repulsion energy63.173983
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/6-31G**
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' 3817 3817 40.65      
2 A' 1980 1980 329.03      
3 A' 1349 1349 0.03      
4 A' 1144 1144 203.22      
5 A' 619 619 40.02      
6 A" 610 610 141.05      

Unscaled Zero Point Vibrational Energy (zpe) 4758.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4758.8 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 MP3=FULL/6-31G**
ABC
4.69111 0.39276 0.36242

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.446 0.000
O2 -1.062 -0.358 0.000
O3 1.156 0.183 0.000
H4 -0.749 -1.275 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33151.18511.8764
O21.33152.28240.9692
O31.18512.28242.3982
H41.87640.96922.3982

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 108.257 O2 C1 O3 130.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP3=FULL/6-31G**
 hartrees
Energy at 0K-188.607950
Energy at 298.15K-188.609032
HF Energy-188.132222
Nuclear repulsion energy62.911725
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/6-31G**
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' 3953 3953 112.41      
2 A' 2015 2015 222.93      
3 A' 1295 1295 289.90      
4 A' 1145 1145 55.24      
5 A' 630 630 3.71      
6 A" 546 546 99.83      

Unscaled Zero Point Vibrational Energy (zpe) 4791.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4791.7 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 MP3=FULL/6-31G**
ABC
5.53849 0.38200 0.35736

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.411 0.000
O2 -0.944 -0.546 0.000
O3 1.170 0.252 0.000
H4 -1.804 -0.116 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34391.18051.8793
O21.34392.25950.9614
O31.18052.25952.9966
H41.87930.96142.9966

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 108.068 O2 C1 O3 126.919
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability