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

using model chemistry: BLYP/3-21G

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 BLYP/3-21G
 hartrees
Energy at 0K-188.007050
Energy at 298.15K-188.008037
HF Energy-188.007050
Nuclear repulsion energy60.987625
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 BLYP/3-21G
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' 2964 2948 40.69      
2 A' 1683 1674 166.50      
3 A' 1263 1256 10.88      
4 A' 898 893 79.85      
5 A' 532 529 27.20      
6 A" 563 559 111.54      

Unscaled Zero Point Vibrational Energy (zpe) 3951.5 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 3929.8 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 BLYP/3-21G
ABC
4.54700 0.36393 0.33696

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.448 0.000
O2 -1.096 -0.372 0.000
O3 1.199 0.207 0.000
H4 -0.826 -1.367 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.36851.22301.9936
O21.36852.36701.0309
O31.22302.36702.5648
H41.99361.03092.5648

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 111.607 O2 C1 O3 131.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.498      
2 O -0.463      
3 O -0.366      
4 H 0.332      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.697 -2.045 0.000 2.160
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.105 0.783 0.000
y 0.783 -13.628 0.000
z 0.000 0.000 -15.759
Traceless
 xyz
x -5.412 0.783 0.000
y 0.783 4.303 0.000
z 0.000 0.000 1.108
Polar
3z2-r22.216
x2-y2-6.477
xy0.783
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.908 0.493 0.000
y 0.493 2.533 0.000
z 0.000 0.000 1.011


<r2> (average value of r2) Å2
<r2> 36.618
(<r2>)1/2 6.051

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-188.009497
Energy at 298.15K-188.010458
HF Energy-188.009497
Nuclear repulsion energy60.570628
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 BLYP/3-21G
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' 3338 3320 27.89      
2 A' 1727 1717 89.45      
3 A' 1159 1153 164.55      
4 A' 926 921 85.92      
5 A' 558 555 9.70      
6 A" 504 502 109.43      

Unscaled Zero Point Vibrational Energy (zpe) 4106.1 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 4083.5 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 BLYP/3-21G
ABC
4.99083 0.35557 0.33192

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.434 0.000
O2 -0.972 -0.584 0.000
O3 1.206 0.275 0.000
H4 -1.874 -0.135 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.40761.21661.9588
O21.40762.34141.0083
O31.21662.34143.1077
H41.95881.00833.1077

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 107.193 O2 C1 O3 126.155
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.451      
2 O -0.461      
3 O -0.361      
4 H 0.370      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.861 0.274 0.000 2.874
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.349 -1.027 0.000
y -1.027 -17.736 0.000
z 0.000 0.000 -15.768
Traceless
 xyz
x 3.403 -1.027 0.000
y -1.027 -3.178 0.000
z 0.000 0.000 -0.225
Polar
3z2-r2-0.450
x2-y24.387
xy-1.027
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.599 0.316 0.000
y 0.316 1.634 0.000
z 0.000 0.000 1.020


<r2> (average value of r2) Å2
<r2> 36.946
(<r2>)1/2 6.078