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

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-185.592181
Energy at 298.15K-185.593011
HF Energy-185.592181
Nuclear repulsion energy61.582777
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/STO-3G
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' 4171 3406 10.96      
2 A' 1674 1367 18.47      
3 A' 1586 1295 4.29      
4 A' 1014 828 288.18      
5 A' 598 488 14.37      
6 A" 400 326 97.74      

Unscaled Zero Point Vibrational Energy (zpe) 4721.3 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 3854.9 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 HF/STO-3G
ABC
4.27143 0.37619 0.34574

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.471 0.000
O2 -1.087 -0.379 0.000
O3 1.177 0.189 0.000
H4 -0.715 -1.301 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.38031.21001.9111
O21.38032.33400.9942
O31.21002.33402.4081
H41.91110.99422.4081

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 106.052 O2 C1 O3 128.481
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.282      
2 O -0.274      
3 O -0.221      
4 H 0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.377 -1.066 0.000 1.130
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.731 0.102 0.000
y 0.102 -12.397 0.000
z 0.000 0.000 -13.918
Traceless
 xyz
x -5.574 0.102 0.000
y 0.102 3.928 0.000
z 0.000 0.000 1.646
Polar
3z2-r23.291
x2-y2-6.334
xy0.102
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.045 0.406 0.000
y 0.406 1.634 0.000
z 0.000 0.000 0.443


<r2> (average value of r2) Å2
<r2> 34.882
(<r2>)1/2 5.906

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-185.597928
Energy at 298.15K-185.598835
HF Energy-185.597928
Nuclear repulsion energy61.522343
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/STO-3G
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' 4255 3474 9.63      
2 A' 2099 1714 43.95      
3 A' 1495 1221 111.32      
4 A' 1165 951 53.36      
5 A' 600 490 3.32      
6 A" 452 369 63.66      

Unscaled Zero Point Vibrational Energy (zpe) 5032.3 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 4108.8 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/STO-3G
ABC
4.88199 0.37010 0.34402

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.439 0.000
O2 -0.955 -0.574 0.000
O3 1.184 0.258 0.000
H4 -1.831 -0.112 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.39271.19811.9123
O21.39272.29580.9899
O31.19812.29583.0380
H41.91230.98993.0380

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 105.513 O2 C1 O3 124.617
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.252      
2 O -0.260      
3 O -0.214      
4 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.301 0.681 0.000 2.399
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.446 -1.224 0.000
y -1.224 -15.676 0.000
z 0.000 0.000 -13.920
Traceless
 xyz
x 1.352 -1.224 0.000
y -1.224 -1.993 0.000
z 0.000 0.000 0.641
Polar
3z2-r21.282
x2-y22.230
xy-1.224
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.534 0.090 0.000
y 0.090 1.358 0.000
z 0.000 0.000 0.473


<r2> (average value of r2) Å2
<r2> 35.175
(<r2>)1/2 5.931