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

using model chemistry: B2PLYP/TZVP

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 B2PLYP/TZVP
 hartrees
Energy at 0K-189.015950
Energy at 298.15K-189.017036
HF Energy-188.844192
Nuclear repulsion energy63.126543
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 B2PLYP/TZVP
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' 3621 3456 24.74      
2 A' 1852 1768 315.32      
3 A' 1293 1234 0.29      
4 A' 1071 1022 182.18      
5 A' 603 575 35.15      
6 A" 583 556 126.60      

Unscaled Zero Point Vibrational Energy (zpe) 4511.2 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 4305.5 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 B2PLYP/TZVP
ABC
4.70436 0.39210 0.36193

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.444 0.000
O2 -1.062 -0.356 0.000
O3 1.157 0.184 0.000
H4 -0.761 -1.285 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32951.18581.8888
O21.32952.28360.9764
O31.18582.28362.4156
H41.88880.97642.4156

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 109.033 O2 C1 O3 130.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.229      
2 O -0.269      
3 O -0.236      
4 H 0.276      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.900 -1.767 0.000 1.983
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.813 0.684 0.000
y 0.684 -14.080 0.000
z 0.000 0.000 -16.375
Traceless
 xyz
x -5.586 0.684 0.000
y 0.684 4.514 0.000
z 0.000 0.000 1.072
Polar
3z2-r22.144
x2-y2-6.734
xy0.684
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.614 0.195 0.000
y 0.195 2.883 0.000
z 0.000 0.000 1.812


<r2> (average value of r2) Å2
<r2> 35.099
(<r2>)1/2 5.924

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B2PLYP/TZVP
 hartrees
Energy at 0K-189.019314
Energy at 298.15K-189.020381
HF Energy-188.846650
Nuclear repulsion energy62.867691
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 B2PLYP/TZVP
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' 3811 3637 126.36      
2 A' 1887 1801 220.71      
3 A' 1241 1184 245.05      
4 A' 1079 1030 76.90      
5 A' 620 592 5.97      
6 A" 542 518 102.51      

Unscaled Zero Point Vibrational Energy (zpe) 4590.4 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 4381.1 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 B2PLYP/TZVP
ABC
5.52474 0.38172 0.35705

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.411 0.000
O2 -0.944 -0.546 0.000
O3 1.170 0.253 0.000
H4 -1.809 -0.117 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.34451.18071.8845
O21.34452.25990.9659
O31.18072.25993.0019
H41.88450.96593.0019

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 108.177 O2 C1 O3 126.878
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.156      
2 O -0.249      
3 O -0.212      
4 H 0.306      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.005 0.437 0.000 3.037
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.144 -1.129 0.000
y -1.129 -18.309 0.000
z 0.000 0.000 -16.450
Traceless
 xyz
x 3.235 -1.129 0.000
y -1.129 -3.012 0.000
z 0.000 0.000 -0.223
Polar
3z2-r2-0.446
x2-y24.165
xy-1.129
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.069 0.186 0.000
y 0.186 2.401 0.000
z 0.000 0.000 1.850


<r2> (average value of r2) Å2
<r2> 35.461
(<r2>)1/2 5.955