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

using model chemistry: PBEPBE/Def2TZVPP

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 PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-188.985572
Energy at 298.15K-188.986631
HF Energy-188.985572
Nuclear repulsion energy62.811262
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 PBEPBE/Def2TZVPP
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' 3424 3383 6.36      
2 A' 1813 1791 287.97      
3 A' 1258 1243 0.99      
4 A' 1028 1016 123.70      
5 A' 571 564 26.45      
6 A" 589 582 92.10      

Unscaled Zero Point Vibrational Energy (zpe) 4341.6 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 4289.0 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 PBEPBE/Def2TZVPP
ABC
4.74457 0.38708 0.35788

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.472 0.000
O2 -1.078 -0.343 0.000
O3 1.167 0.146 0.000
H4 -0.716 -1.258 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.35121.21181.8722
O21.35122.29730.9834
O31.21182.29732.3487
H41.87220.98342.3487

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 105.548 O2 C1 O3 127.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.144      
2 O -0.177      
3 O -0.164      
4 H 0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.993 -1.724 0.000 1.990
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.995 0.762 0.000
y 0.762 -14.259 0.000
z 0.000 0.000 -16.410
Traceless
 xyz
x -4.661 0.762 0.000
y 0.762 3.944 0.000
z 0.000 0.000 0.717
Polar
3z2-r21.435
x2-y2-5.737
xy0.762
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.851 0.335 0.000
y 0.335 3.406 0.000
z 0.000 0.000 2.100


<r2> (average value of r2) Å2
<r2> 35.258
(<r2>)1/2 5.938

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-188.988515
Energy at 298.15K-188.989562
HF Energy-188.988515
Nuclear repulsion energy62.552746
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 PBEPBE/Def2TZVPP
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' 3688 3644 98.72      
2 A' 1843 1820 202.72      
3 A' 1199 1184 220.74      
4 A' 1058 1045 62.31      
5 A' 599 591 4.82      
6 A" 545 539 83.51      

Unscaled Zero Point Vibrational Energy (zpe) 4465.6 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 4411.6 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 PBEPBE/Def2TZVPP
ABC
5.42901 0.37862 0.35393

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.407 0.000
O2 -0.946 -0.534 0.000
O3 1.173 0.241 0.000
H4 -1.816 -0.102 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33381.18451.8857
O21.33382.25580.9714
O31.18452.25583.0082
H41.88570.97143.0082

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 108.754 O2 C1 O3 127.118
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.064      
2 O -0.148      
3 O -0.145      
4 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.893 0.198 0.000 2.900
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.929 -0.884 0.000
y -0.884 -18.070 0.000
z 0.000 0.000 -16.472
Traceless
 xyz
x 3.342 -0.884 0.000
y -0.884 -2.870 0.000
z 0.000 0.000 -0.473
Polar
3z2-r2-0.945
x2-y24.141
xy-0.884
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.309 0.217 0.000
y 0.217 2.703 0.000
z 0.000 0.000 2.137


<r2> (average value of r2) Å2
<r2> 35.593
(<r2>)1/2 5.966