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

using model chemistry: B3PW91/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 B3PW91/cc-pVTZ
 hartrees
Energy at 0K-189.095062
Energy at 298.15K-189.096164
HF Energy-189.095062
Nuclear repulsion energy63.394462
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 B3PW91/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' 3611 3473 18.70      
2 A' 1890 1818 319.94      
3 A' 1303 1253 0.02      
4 A' 1092 1050 157.66      
5 A' 603 580 32.35      
6 A" 600 577 106.05      

Unscaled Zero Point Vibrational Energy (zpe) 4549.8 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 4375.1 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 B3PW91/cc-pVTZ
ABC
4.79235 0.39480 0.36475

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.439 0.000
O2 -1.058 -0.352 0.000
O3 1.154 0.183 0.000
H4 -0.764 -1.282 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32091.18141.8824
O21.32092.27560.9752
O31.18142.27562.4132
H41.88240.97522.4132

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 109.209 O2 C1 O3 130.759
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.174      
2 O -0.190      
3 O -0.188      
4 H 0.204      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.062 -1.712 0.000 2.015
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.873 0.690 0.000
y 0.690 -13.843 0.000
z 0.000 0.000 -16.084
Traceless
 xyz
x -4.909 0.690 0.000
y 0.690 4.135 0.000
z 0.000 0.000 0.774
Polar
3z2-r21.549
x2-y2-6.029
xy0.690
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.463 0.242 0.000
y 0.242 2.952 0.000
z 0.000 0.000 1.881


<r2> (average value of r2) Å2
<r2> 34.612
(<r2>)1/2 5.883

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-189.097555
Energy at 298.15K-189.098639
HF Energy-189.097555
Nuclear repulsion energy63.131795
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 B3PW91/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' 3825 3678 121.00      
2 A' 1924 1850 227.69      
3 A' 1247 1199 256.92      
4 A' 1110 1067 55.45      
5 A' 626 602 4.15      
6 A" 554 533 86.00      

Unscaled Zero Point Vibrational Energy (zpe) 4642.7 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 4464.4 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 B3PW91/cc-pVTZ
ABC
5.61010 0.38467 0.35999

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.407 0.000
O2 -0.941 -0.542 0.000
O3 1.166 0.251 0.000
H4 -1.804 -0.114 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33661.17671.8779
O21.33662.25120.9639
O31.17672.25122.9926
H41.87790.96392.9926

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 108.339 O2 C1 O3 127.082
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.102      
2 O -0.159      
3 O -0.163      
4 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.994 0.268 0.000 3.006
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.752 -0.966 0.000
y -0.966 -17.722 0.000
z 0.000 0.000 -16.124
Traceless
 xyz
x 3.171 -0.966 0.000
y -0.966 -2.784 0.000
z 0.000 0.000 -0.388
Polar
3z2-r2-0.775
x2-y23.970
xy-0.966
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.901 0.173 0.000
y 0.173 2.401 0.000
z 0.000 0.000 1.900


<r2> (average value of r2) Å2
<r2> 34.987
(<r2>)1/2 5.915