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

using model chemistry: MP3/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 MP3/cc-pVDZ
 hartrees
Energy at 0K-188.621411
Energy at 298.15K-188.622533
HF Energy-188.147361
Nuclear repulsion energy63.191268
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/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' 3759 3564 40.99      
2 A' 1974 1871 329.51      
3 A' 1353 1282 0.82      
4 A' 1140 1081 191.20      
5 A' 627 595 33.45      
6 A" 600 569 118.98      

Unscaled Zero Point Vibrational Energy (zpe) 4726.3 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 4480.0 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/cc-pVDZ
ABC
4.70412 0.39288 0.36259

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.445 0.000
O2 -1.063 -0.361 0.000
O3 1.154 0.186 0.000
H4 -0.727 -1.275 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33351.18231.8669
O21.33352.28310.9737
O31.18232.28312.3817
H41.86690.97372.3817

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 106.989 O2 C1 O3 130.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP3/cc-pVDZ
 hartrees
Energy at 0K-188.623392
Energy at 298.15K-188.624478
HF Energy-188.147248
Nuclear repulsion energy62.921980
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/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' 3906 3703 124.95      
2 A' 2004 1900 231.89      
3 A' 1306 1238 267.03      
4 A' 1136 1077 58.14      
5 A' 633 600 3.80      
6 A" 542 514 88.52      

Unscaled Zero Point Vibrational Energy (zpe) 4763.7 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 4515.5 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/cc-pVDZ
ABC
5.54570 0.38194 0.35733

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.408 0.000
O2 -0.944 -0.551 0.000
O3 1.168 0.257 0.000
H4 -1.798 -0.101 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34551.17801.8684
O21.34552.26110.9652
O31.17802.26112.9874
H41.86840.96522.9874

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 106.760 O2 C1 O3 127.151
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability