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

using model chemistry: ROHF/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS cis 1A'
1 2 no CS trans 1A'

Conformer 1 (CS cis)

Jump to S1C2
Energy calculated at ROHF/6-31+G**
 hartrees
Energy at 0K-188.130146
Energy at 298.15K-188.131315
HF Energy-188.130146
Nuclear repulsion energy64.114978
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/6-31+G**
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' 3965 3393 107.90      
2 A' 2080 1780 565.12      
3 A' 1416 1212 6.98      
4 A' 1238 1060 256.28      
5 A' 666 570 57.36      
6 A" 629 539 184.45      

Unscaled Zero Point Vibrational Energy (zpe) 4996.8 cm-1
Scaled (by 0.8559) Zero Point Vibrational Energy (zpe) 4276.7 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 ROHF/6-31+G**
ABC
4.93102 0.40289 0.37246

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.434 0.000
O2 -1.044 -0.356 0.000
O3 1.140 0.189 0.000
H4 -0.770 -1.273 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.30871.16611.8722
O21.30872.25110.9571
O31.16612.25112.4057
H41.87220.95712.4057

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 110.474 O2 C1 O3 130.817
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.613      
2 O -0.654      
3 O -0.481      
4 H 0.522      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.395 -1.511 0.000 2.057
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.485 0.603 -0.002
y 0.603 -13.364 -0.003
z -0.002 -0.003 -16.209
Traceless
 xyz
x -6.698 0.603 -0.002
y 0.603 5.483 -0.003
z -0.002 -0.003 1.216
Polar
3z2-r22.431
x2-y2-8.121
xy0.603
xz-0.002
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> 34.389
(<r2>)1/2 5.864

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at ROHF/6-31+G**
 hartrees
Energy at 0K-188.129906
Energy at 298.15K-188.131033
HF Energy-188.129906
Nuclear repulsion energy63.906383
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/6-31+G**
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' 4087 3498 178.56      
2 A' 2132 1825 457.48      
3 A' 1386 1187 382.67      
4 A' 1221 1045 29.63      
5 A' 686 587 8.06      
6 A" 549 470 108.59      

Unscaled Zero Point Vibrational Energy (zpe) 5030.5 cm-1
Scaled (by 0.8559) Zero Point Vibrational Energy (zpe) 4305.6 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/6-31+G**
ABC
6.14163 0.38984 0.36657

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.391 0.000
O2 -0.929 -0.542 0.000
O3 1.154 0.268 0.000
H4 -1.797 -0.156 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.31671.16021.8784
O21.31672.23480.9498
O31.16022.23482.9810
H41.87840.94982.9810

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 110.909 O2 C1 O3 128.803
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.572      
2 O -0.638      
3 O -0.457      
4 H 0.524      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.640 0.791 0.000 3.725
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.492 -1.370 -0.004
y -1.370 -18.071 -0.000
z -0.004 -0.000 -16.261
Traceless
 xyz
x 2.674 -1.370 -0.004
y -1.370 -2.694 -0.000
z -0.004 -0.000 0.020
Polar
3z2-r20.041
x2-y23.579
xy-1.370
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> 34.814
(<r2>)1/2 5.900