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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-188.746032
Energy at 298.15K-188.747149
HF Energy-188.181728
Nuclear repulsion energy63.133459
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' 3735 3543 40.58      
2 A' 1896 1798 288.65      
3 A' 1329 1261 1.79      
4 A' 1114 1057 182.11      
5 A' 617 585 33.08      
6 A" 608 577 117.66      

Unscaled Zero Point Vibrational Energy (zpe) 4649.2 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 4410.3 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 MP2=FULL/6-311G**
ABC
4.72896 0.39164 0.36169

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 -1.065 -0.355 0.000
O3 1.158 0.182 0.000
H4 -0.736 -1.269 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33131.18671.8632
O21.33132.28680.9710
O31.18672.28682.3852
H41.86320.97102.3852

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 107.013 O2 C1 O3 130.435
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-188.748590
Energy at 298.15K-188.749674
HF Energy-188.181560
Nuclear repulsion energy62.853231
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' 3888 3688 135.45      
2 A' 1920 1821 191.12      
3 A' 1272 1206 253.32      
4 A' 1123 1065 62.73      
5 A' 623 591 4.81      
6 A" 552 524 95.29      

Unscaled Zero Point Vibrational Energy (zpe) 4688.4 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 4447.5 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
5.53515 0.38105 0.35651

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 0.408 0.000
O2 -0.948 -0.546 0.000
O3 1.172 0.251 0.000
H4 -1.793 -0.086 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34441.18261.8602
O21.34442.26460.9623
O31.18262.26462.9846
H41.86020.96232.9846

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 106.318 O2 C1 O3 127.209
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability