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

using model chemistry: CCSD/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 CCSD/TZVP
 hartrees
Energy at 0K-188.713585
Energy at 298.15K-188.714677
HF Energy-188.198494
Nuclear repulsion energy63.258845
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 CCSD/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' 3705 3536 29.00      
2 A' 1910 1823 334.12      
3 A' 1327 1267 0.65      
4 A' 1101 1051 201.23      
5 A' 620 592 36.68      
6 A" 566 541 130.41      

Unscaled Zero Point Vibrational Energy (zpe) 4614.8 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 4404.4 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 CCSD/TZVP
ABC
4.69462 0.39406 0.36355

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.445 0.000
O2 -1.060 -0.360 0.000
O3 1.152 0.186 0.000
H4 -0.739 -1.278 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33121.18131.8754
O21.33122.27880.9728
O31.18132.27882.3920
H41.87540.97282.3920

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 107.962 O2 C1 O3 130.081
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCSD/TZVP
 hartrees
Energy at 0K-188.716611
Energy at 298.15K-188.717677
HF Energy-188.199269
Nuclear repulsion energy62.991226
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 CCSD/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' 3867 3691 115.44      
2 A' 1948 1859 241.33      
3 A' 1278 1220 248.04      
4 A' 1096 1046 81.56      
5 A' 631 603 6.17      
6 A" 525 501 99.49      

Unscaled Zero Point Vibrational Energy (zpe) 4672.8 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 4459.8 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 CCSD/TZVP
ABC
5.57553 0.38260 0.35803

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.409 0.000
O2 -0.941 -0.551 0.000
O3 1.167 0.259 0.000
H4 -1.801 -0.115 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34431.17611.8756
O21.34432.25820.9637
O31.17612.25822.9910
H41.87560.96372.9910

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 107.572 O2 C1 O3 127.136
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability