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

using model chemistry: B3PW91/6-311G**

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 B3PW91/6-311G**
 hartrees
Energy at 0K-189.074698
Energy at 298.15K-189.075808
HF Energy-189.074698
Nuclear repulsion energy63.393471
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 B3PW91/6-311G**
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' 3624 3490 17.52      
2 A' 1901 1831 325.43      
3 A' 1305 1257 0.51      
4 A' 1101 1060 157.41      
5 A' 606 584 35.67      
6 A" 612 589 117.60      

Unscaled Zero Point Vibrational Energy (zpe) 4574.4 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 4405.6 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 B3PW91/6-311G**
ABC
4.75979 0.39536 0.36504

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.440 0.000
O2 -1.058 -0.351 0.000
O3 1.153 0.181 0.000
H4 -0.759 -1.279 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.32131.18201.8795
O21.32132.27440.9752
O31.18202.27442.4057
H41.87950.97522.4057

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 108.920 O2 C1 O3 130.522
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.277      
2 O -0.269      
3 O -0.255      
4 H 0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.977 -1.763 0.000 2.016
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.092 0.654 0.000
y 0.654 -13.743 0.000
z 0.000 0.000 -15.950
Traceless
 xyz
x -5.246 0.654 0.000
y 0.654 4.279 0.000
z 0.000 0.000 0.967
Polar
3z2-r21.935
x2-y2-6.350
xy0.654
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.190 0.248 0.000
y 0.248 2.653 0.000
z 0.000 0.000 1.529


<r2> (average value of r2) Å2
<r2> 34.583
(<r2>)1/2 5.881

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-189.076823
Energy at 298.15K-189.077905
HF Energy-189.076823
Nuclear repulsion energy63.100658
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 B3PW91/6-311G**
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' 3840 3698 120.28      
2 A' 1932 1861 229.34      
3 A' 1248 1202 266.47      
4 A' 1109 1068 51.21      
5 A' 626 603 4.71      
6 A" 553 533 95.24      

Unscaled Zero Point Vibrational Energy (zpe) 4653.8 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 4482.1 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 B3PW91/6-311G**
ABC
5.57391 0.38458 0.35976

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.409 0.000
O2 -0.941 -0.543 0.000
O3 1.166 0.250 0.000
H4 -1.803 -0.111 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 H4
C11.33821.17711.8760
O21.33822.25170.9638
O31.17712.25172.9909
H41.87600.96382.9909

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 108.059 O2 C1 O3 126.944
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.221      
2 O -0.262      
3 O -0.235      
4 H 0.275      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.018 0.358 0.000 3.039
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.709 -1.082 0.000
y -1.082 -17.699 0.000
z 0.000 0.000 -15.992
Traceless
 xyz
x 3.136 -1.082 0.000
y -1.082 -2.849 0.000
z 0.000 0.000 -0.288
Polar
3z2-r2-0.576
x2-y23.990
xy-1.082
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.690 0.179 0.000
y 0.179 2.028 0.000
z 0.000 0.000 1.558


<r2> (average value of r2) Å2
<r2> 34.958
(<r2>)1/2 5.913