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

using model chemistry: HF/6-311+G(3df,2p)

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 HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-188.206664
Energy at 298.15K-188.207829
HF Energy-188.206664
Nuclear repulsion energy64.457547
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 HF/6-311+G(3df,2p)
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' 4034 3665 94.26      
2 A' 2057 1869 503.82      
3 A' 1410 1281 3.48      
4 A' 1220 1109 243.72      
5 A' 672 610 48.09      
6 A" 613 557 148.30      

Unscaled Zero Point Vibrational Energy (zpe) 5002.5 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 4545.2 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 HF/6-311+G(3df,2p)
ABC
5.02455 0.40631 0.37591

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.430 0.000
O2 -1.038 -0.358 0.000
O3 1.134 0.194 0.000
H4 -0.764 -1.267 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.30381.15811.8615
O21.30382.24140.9493
O31.15812.24142.3956
H41.86150.94932.3956

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 110.429 O2 C1 O3 131.042
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.911      
2 O -0.497      
3 O -0.641      
4 H 0.226      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.375 -1.517 0.000 2.047
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.793 0.597 0.000
y 0.597 -13.577 0.000
z 0.000 0.000 -16.100
Traceless
 xyz
x -5.954 0.597 0.000
y 0.597 4.869 0.000
z 0.000 0.000 1.085
Polar
3z2-r22.170
x2-y2-7.216
xy0.597
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.356 0.079 0.000
y 0.079 2.799 0.000
z 0.000 0.000 2.080


<r2> (average value of r2) Å2
<r2> 34.047
(<r2>)1/2 5.835

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-188.207698
Energy at 298.15K-188.208827
HF Energy-188.207698
Nuclear repulsion energy64.222688
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 HF/6-311+G(3df,2p)
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' 4159 3779 174.64      
2 A' 2103 1911 401.68      
3 A' 1372 1246 339.21      
4 A' 1197 1087 48.18      
5 A' 693 630 6.10      
6 A" 545 496 91.67      

Unscaled Zero Point Vibrational Energy (zpe) 5034.8 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 4574.6 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 HF/6-311+G(3df,2p)
ABC
6.17962 0.39361 0.37004

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.391 0.000
O2 -0.923 -0.544 0.000
O3 1.146 0.271 0.000
H4 -1.785 -0.162 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.31371.15241.8684
O21.31372.22430.9425
O31.15242.22432.9629
H41.86840.94252.9629

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 110.742 O2 C1 O3 128.708
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.862      
2 O -0.484      
3 O -0.617      
4 H 0.239      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.403 0.533 0.000 3.444
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.383 -1.160 0.000
y -1.160 -17.927 0.000
z 0.000 0.000 -16.141
Traceless
 xyz
x 2.651 -1.160 0.000
y -1.160 -2.665 0.000
z 0.000 0.000 0.014
Polar
3z2-r20.028
x2-y23.544
xy-1.160
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.691 0.075 0.000
y 0.075 2.594 0.000
z 0.000 0.000 2.118


<r2> (average value of r2) Å2
<r2> 34.500
(<r2>)1/2 5.874