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

using model chemistry: MP3/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/TZVP
 hartrees
Energy at 0K-188.701012
Energy at 298.15K-188.702122
HF Energy-188.199435
Nuclear repulsion energy63.560843
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/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' 3777 3532 40.18      
2 A' 1975 1847 386.75      
3 A' 1342 1255 0.67      
4 A' 1130 1056 210.45      
5 A' 634 593 38.21      
6 A" 576 539 136.24      

Unscaled Zero Point Vibrational Energy (zpe) 4716.6 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 4411.0 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/TZVP
ABC
4.76821 0.39725 0.36670

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.442 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
C11.32601.17381.8704
O21.32602.26920.9688
O31.17382.26922.3874
H41.87040.96882.3874

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 108.172 O2 C1 O3 130.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP3/TZVP
 hartrees
Energy at 0K-188.704318
Energy at 298.15K-188.705403
HF Energy-188.200236
Nuclear repulsion energy63.309390
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/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' 3924 3670 125.95      
2 A' 2010 1880 274.05      
3 A' 1296 1212 262.28      
4 A' 1127 1054 77.77      
5 A' 642 600 4.65      
6 A" 537 502 100.34      

Unscaled Zero Point Vibrational Energy (zpe) 4767.5 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 4458.6 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/TZVP
ABC
5.66689 0.38608 0.36145

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.405 0.000
O2 -0.936 -0.551 0.000
O3 1.160 0.262 0.000
H4 -1.794 -0.120 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33791.16901.8697
O21.33792.24780.9604
O31.16902.24782.9790
H41.86970.96042.9790

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 107.757 O2 C1 O3 127.314
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability