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

using model chemistry: CCD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-188.665112
Energy at 298.15K-188.666202
HF Energy-188.161166
Nuclear repulsion energy62.831847
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/aug-cc-pVDZ
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' 3709 3578 44.59      
2 A' 1899 1832 354.01      
3 A' 1327 1280 1.02      
4 A' 1087 1048 203.81      
5 A' 609 588 31.01      
6 A" 573 553 114.01      

Unscaled Zero Point Vibrational Energy (zpe) 4602.4 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 4439.0 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 CCD/aug-cc-pVDZ
ABC
4.70451 0.38722 0.35778

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.445 0.000
O2 -1.068 -0.367 0.000
O3 1.161 0.194 0.000
H4 -0.748 -1.288 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34151.18781.8872
O21.34152.29830.9745
O31.18782.29832.4164
H41.88720.97452.4164

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 108.093 O2 C1 O3 130.545
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-188.668145
Energy at 298.15K-188.669211
HF Energy-188.162067
Nuclear repulsion energy62.619679
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/aug-cc-pVDZ
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' 3848 3711 123.27      
2 A' 1935 1866 254.82      
3 A' 1281 1235 242.39      
4 A' 1085 1046 86.00      
5 A' 617 595 4.07      
6 A" 535 516 86.02      

Unscaled Zero Point Vibrational Energy (zpe) 4649.7 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 4484.7 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/aug-cc-pVDZ
ABC
5.51934 0.37787 0.35366

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.411 0.000
O2 -0.947 -0.555 0.000
O3 1.174 0.261 0.000
H4 -1.811 -0.121 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.35281.18311.8880
O21.35282.27220.9665
O31.18312.27223.0092
H41.88800.96653.0092

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 107.820 O2 C1 O3 127.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability