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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-188.980195
Energy at 298.15K-188.981254
HF Energy-188.980195
Nuclear repulsion energy62.776860
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 PBEPBEultrafine/aug-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' 3406 3368 5.84      
2 A' 1806 1786 305.04      
3 A' 1254 1240 1.32      
4 A' 1025 1014 126.13      
5 A' 571 564 25.08      
6 A" 584 577 90.06      

Unscaled Zero Point Vibrational Energy (zpe) 4322.7 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 4274.3 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
4.75185 0.38648 0.35741

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.439 0.000
O2 -1.070 -0.354 0.000
O3 1.166 0.187 0.000
H4 -0.772 -1.297 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33141.19311.9005
O21.33142.30000.9892
O31.19312.30002.4413
H41.90050.98922.4413

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 109.073 O2 C1 O3 131.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.225      
2 O -0.147      
3 O -0.251      
4 H 0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.010 -1.663 0.000 1.946
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.174 0.834 0.000
y 0.834 -14.484 0.000
z 0.000 0.000 -16.606
Traceless
 xyz
x -4.629 0.834 0.000
y 0.834 3.906 0.000
z 0.000 0.000 0.723
Polar
3z2-r21.446
x2-y2-5.690
xy0.834
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.280 0.300 0.000
y 0.300 3.985 0.000
z 0.000 0.000 2.604


<r2> (average value of r2) Å2
<r2> 35.419
(<r2>)1/2 5.951

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-188.983280
Energy at 298.15K-188.984329
HF Energy-188.983280
Nuclear repulsion energy62.532015
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 PBEPBEultrafine/aug-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' 3671 3630 102.22      
2 A' 1839 1818 222.09      
3 A' 1197 1183 216.91      
4 A' 1053 1041 64.85      
5 A' 597 590 5.01      
6 A" 544 538 80.25      

Unscaled Zero Point Vibrational Energy (zpe) 4450.1 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 4400.2 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
5.44889 0.37811 0.35358

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.413 0.000
O2 -0.950 -0.546 0.000
O3 1.177 0.250 0.000
H4 -1.819 -0.106 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34981.18821.8917
O21.34982.27090.9750
O31.18822.27093.0173
H41.89170.97503.0173

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 107.830 O2 C1 O3 126.835
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.169      
2 O -0.153      
3 O -0.228      
4 H 0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.864 0.204 0.000 2.871
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.184 -0.841 0.000
y -0.841 -18.337 0.000
z 0.000 0.000 -16.672
Traceless
 xyz
x 3.320 -0.841 0.000
y -0.841 -2.909 0.000
z 0.000 0.000 -0.411
Polar
3z2-r2-0.822
x2-y24.152
xy-0.841
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.732 0.173 0.000
y 0.173 3.312 0.000
z 0.000 0.000 2.655


<r2> (average value of r2) Å2
<r2> 35.771
(<r2>)1/2 5.981