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

using model chemistry: ROHF/aug-cc-pVTZ

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 ROHF/aug-cc-pVTZ
 hartrees
Energy at 0K-188.206510
Energy at 298.15K-188.207680
HF Energy-188.206510
Nuclear repulsion energy64.405884
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 ROHF/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 4015 4015 103.47      
2 A' 2063 2063 531.31      
3 A' 1416 1416 5.50      
4 A' 1227 1227 240.69      
5 A' 673 673 49.96      
6 A" 615 615 148.98      

Unscaled Zero Point Vibrational Energy (zpe) 5004.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5004.2 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 ROHF/aug-cc-pVTZ
ABC
5.04145 0.40526 0.37510

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.429 0.000
O2 -1.040 -0.359 0.000
O3 1.135 0.196 0.000
H4 -0.762 -1.268 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.30471.15871.8606
O21.30472.24440.9503
O31.15872.24442.3966
H41.86060.95032.3966

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 110.200 O2 C1 O3 131.222
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.325      
2 O -0.186      
3 O -0.341      
4 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.423 -1.483 0.000 2.055
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.814 0.618 -0.001
y 0.618 -13.551 -0.003
z -0.001 -0.003 -16.073
Traceless
 xyz
x -6.001 0.618 -0.001
y 0.618 4.892 -0.003
z -0.001 -0.003 1.109
Polar
3z2-r22.219
x2-y2-7.262
xy0.618
xz-0.001
yz-0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 34.088
(<r2>)1/2 5.839

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at ROHF/aug-cc-pVTZ
 hartrees
Energy at 0K-188.206971
Energy at 298.15K-188.208103
HF Energy-188.206971
Nuclear repulsion energy64.211446
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 ROHF/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 4132 4132 173.64      
2 A' 2114 2114 446.06      
3 A' 1379 1379 355.42      
4 A' 1216 1216 33.44      
5 A' 697 697 7.15      
6 A" 541 541 89.61      

Unscaled Zero Point Vibrational Energy (zpe) 5039.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5039.9 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 ROHF/aug-cc-pVTZ
ABC
6.23325 0.39298 0.36967

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.388 0.000
O2 -0.924 -0.544 0.000
O3 1.147 0.272 0.000
H4 -1.786 -0.159 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.31231.15311.8676
O21.31232.22630.9434
O31.15312.22632.9645
H41.86760.94342.9645

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 110.713 O2 C1 O3 128.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.319      
2 O -0.235      
3 O -0.338      
4 H 0.254      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.457 0.560 0.000 3.502
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.441 -1.153 -0.004
y -1.153 -17.888 -0.000
z -0.004 -0.000 -16.118
Traceless
 xyz
x 2.562 -1.153 -0.004
y -1.153 -2.608 -0.000
z -0.004 -0.000 0.047
Polar
3z2-r20.094
x2-y23.447
xy-1.153
xz-0.004
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 34.523
(<r2>)1/2 5.876