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

using model chemistry: MP3=FULL/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 MP3=FULL/TZVP
 hartrees
Energy at 0K-188.753629
Energy at 298.15K-188.754741
HF Energy-188.199519
Nuclear repulsion energy63.598729
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/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' 3778 3527 40.24      
2 A' 1978 1847 387.67      
3 A' 1341 1252 0.65      
4 A' 1131 1056 210.46      
5 A' 635 592 38.43      
6 A" 577 539 136.39      

Unscaled Zero Point Vibrational Energy (zpe) 4719.9 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 4407.0 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/TZVP
ABC
4.77675 0.39769 0.36713

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.441 0.000
O2 -1.054 -0.362 0.000
O3 1.146 0.190 0.000
H4 -0.737 -1.277 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32501.17301.8699
O21.32502.26790.9687
O31.17302.26792.3870
H41.86990.96872.3870

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 108.216 O2 C1 O3 130.323
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP3=FULL/TZVP
 hartrees
Energy at 0K-188.756926
Energy at 298.15K-188.758013
HF Energy-188.200329
Nuclear repulsion energy63.347824
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/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' 3925 3665 126.77      
2 A' 2013 1880 275.19      
3 A' 1295 1209 263.98      
4 A' 1129 1054 76.32      
5 A' 643 600 4.65      
6 A" 537 502 100.49      

Unscaled Zero Point Vibrational Energy (zpe) 4771.2 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 4454.9 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/TZVP
ABC
5.68127 0.38649 0.36187

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.405 0.000
O2 -0.935 -0.550 0.000
O3 1.159 0.262 0.000
H4 -1.794 -0.120 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33681.16831.8692
O21.33682.24650.9602
O31.16832.24652.9779
H41.86920.96022.9779

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 107.801 O2 C1 O3 127.351
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability