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

using model chemistry: MP2=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 MP2=FULL/6-311G*
 hartrees
Energy at 0K-188.731920
Energy at 298.15K-188.733043
HF Energy-188.174433
Nuclear repulsion energy63.123055
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 MP2=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' 3675 3480 26.38      
2 A' 1895 1795 296.88      
3 A' 1325 1254 2.20      
4 A' 1123 1063 190.42      
5 A' 613 581 36.74      
6 A" 630 597 141.72      

Unscaled Zero Point Vibrational Energy (zpe) 4629.6 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 4384.7 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 MP2=FULL/6-311G*
ABC
4.72678 0.39156 0.36160

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.443 0.000
O2 -1.063 -0.355 0.000
O3 1.158 0.183 0.000
H4 -0.762 -1.279 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32901.18721.8831
O21.32902.28540.9721
O31.18722.28542.4135
H41.88310.97212.4135

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 108.857 O2 C1 O3 130.454
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-188.734342
Energy at 298.15K-188.735436
HF Energy-188.174163
Nuclear repulsion energy62.861263
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 MP2=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' 3843 3639 112.87      
2 A' 1922 1821 184.76      
3 A' 1282 1215 286.75      
4 A' 1119 1060 53.89      
5 A' 623 590 5.25      
6 A" 573 543 116.92      

Unscaled Zero Point Vibrational Energy (zpe) 4681.4 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 4433.7 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 MP2=FULL/6-311G*
ABC
5.57203 0.38099 0.35661

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.409 0.000
O2 -0.946 -0.544 0.000
O3 1.172 0.252 0.000
H4 -1.807 -0.113 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34301.18241.8808
O21.34302.26260.9626
O31.18242.26263.0010
H41.88080.96263.0010

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 108.194 O2 C1 O3 127.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability