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

using model chemistry: ROHF/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/cc-pVTZ
 hartrees
Energy at 0K-188.203334
Energy at 298.15K-188.204508
HF Energy-188.203334
Nuclear repulsion energy64.405780
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/cc-pVTZ
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' 4022 3623 103.24      
2 A' 2072 1867 509.30      
3 A' 1420 1279 5.74      
4 A' 1230 1108 237.44      
5 A' 675 608 49.25      
6 A" 622 561 151.65      

Unscaled Zero Point Vibrational Energy (zpe) 5020.4 cm-1
Scaled (by 0.901) Zero Point Vibrational Energy (zpe) 4523.4 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 ROHF/cc-pVTZ
ABC
5.01881 0.40561 0.37528

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.430 0.000
O2 -1.040 -0.359 0.000
O3 1.135 0.194 0.000
H4 -0.759 -1.267 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.30531.15891.8586
O21.30532.24370.9502
O31.15892.24372.3914
H41.85860.95022.3914

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 109.982 O2 C1 O3 131.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.318      
2 O -0.271      
3 O -0.290      
4 H 0.243      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.393 -1.495 0.000 2.043
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.650 0.527 -0.001
y 0.527 -13.382 -0.003
z -0.001 -0.003 -15.917
Traceless
 xyz
x -6.001 0.527 -0.001
y 0.527 4.901 -0.003
z -0.001 -0.003 1.100
Polar
3z2-r22.199
x2-y2-7.268
xy0.527
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> 33.971
(<r2>)1/2 5.828

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at ROHF/cc-pVTZ
 hartrees
Energy at 0K-188.203434
Energy at 298.15K-188.204567
HF Energy-188.203434
Nuclear repulsion energy64.195944
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/cc-pVTZ
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' 4142 3732 171.46      
2 A' 2122 1912 420.10      
3 A' 1384 1247 357.10      
4 A' 1220 1099 32.41      
5 A' 699 629 6.83      
6 A" 541 487 90.64      

Unscaled Zero Point Vibrational Energy (zpe) 5053.5 cm-1
Scaled (by 0.901) Zero Point Vibrational Energy (zpe) 4553.2 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/cc-pVTZ
ABC
6.19960 0.39305 0.36962

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.389 0.000
O2 -0.924 -0.544 0.000
O3 1.147 0.271 0.000
H4 -1.785 -0.157 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.31321.15341.8663
O21.31322.22620.9431
O31.15342.22622.9630
H41.86630.94312.9630

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 110.537 O2 C1 O3 128.865
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.252      
2 O -0.229      
3 O -0.263      
4 H 0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.450 0.576 0.000 3.498
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.249 -1.201 -0.004
y -1.201 -17.641 -0.000
z -0.004 -0.000 -15.948
Traceless
 xyz
x 2.545 -1.201 -0.004
y -1.201 -2.543 -0.000
z -0.004 -0.000 -0.002
Polar
3z2-r2-0.005
x2-y23.392
xy-1.201
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> 34.397
(<r2>)1/2 5.865