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

using model chemistry: CCD/TZVP

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 CCD/TZVP
 hartrees
Energy at 0K-188.704993
Energy at 298.15K-188.706096
HF Energy-188.199060
Nuclear repulsion energy63.412456
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 CCD/TZVP
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' 3745 3550 38.41      
2 A' 1950 1848 369.18      
3 A' 1334 1265 0.70      
4 A' 1117 1059 210.39      
5 A' 629 596 36.97      
6 A" 572 542 135.12      

Unscaled Zero Point Vibrational Energy (zpe) 4673.4 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 4430.4 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 CCD/TZVP
ABC
4.74901 0.39534 0.36496

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.443 0.000
O2 -1.057 -0.363 0.000
O3 1.149 0.190 0.000
H4 -0.739 -1.280 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32891.17681.8744
O21.32892.27460.9708
O31.17682.27462.3932
H41.87440.97082.3932

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 108.179 O2 C1 O3 130.313
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-188.708283
Energy at 298.15K-188.709361
HF Energy-188.199834
Nuclear repulsion energy63.148416
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 CCD/TZVP
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' 3890 3688 122.07      
2 A' 1983 1880 259.59      
3 A' 1287 1220 254.37      
4 A' 1112 1054 82.64      
5 A' 637 604 5.09      
6 A" 534 506 100.44      

Unscaled Zero Point Vibrational Energy (zpe) 4720.9 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 4475.4 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 CCD/TZVP
ABC
5.64162 0.38406 0.35958

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.406 0.000
O2 -0.938 -0.552 0.000
O3 1.163 0.262 0.000
H4 -1.799 -0.121 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34121.17201.8742
O21.34122.25370.9624
O31.17202.25372.9864
H41.87420.96242.9864

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 107.758 O2 C1 O3 127.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability