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#1 Re: Multiwfn and wavefunction analysis » On spin densities of radical cation/anion » 2020-08-24 19:40:18

Is there a way to get the required wfn files out of the molden file without having to convert them via module 100/2? When I do first convert molden --> wfn, the new wfn files generate the Fukui indices but not the quantities related to IP and EA. I suppose I could use the energies of the radicals minus the energy for the neutral atom for the vertical IP and EA.

#3 Re: Multiwfn and wavefunction analysis » On spin densities of radical cation/anion » 2020-08-24 16:12:57

Dear Sir,

I tried the suggestion above using the following coordinates for the aldehyde. However, I still cannot obtain the spin densities for the cation. Thank you for the help.

Sincerely,

Bernard

15
aldehyde
C          0.88400       -0.50500        0.00000
C          1.18400        0.87700        0.00000
C         -0.45200       -0.92600        0.00000
C          0.12900        1.79700        0.00000
C         -1.17800        1.36800        0.00000
C         -1.46600        0.00300        0.00000
O          2.43400        1.33000        0.00000
H          0.36900        2.84800        0.00000
C          1.95800       -1.47900        0.00200
H         -0.67400       -1.98200       -0.00000
H         -1.98600        2.08300       -0.00000
Cl        -3.11600       -0.51700       -0.00000
H          3.05100        0.55900        0.00000
O          3.14400       -1.20500        0.00100
H          1.62800       -2.53200       -0.00000

#5 Multiwfn and wavefunction analysis » On spin densities of radical cation/anion » 2020-08-24 15:01:23

bernard
Replies: 7

Hi Dr. Lu,

I was trying to calculate the Parr functions for an aldehyde at the GFN2-xTB level. From the geometry of the neutral molecule, I did single-point calculations of the cation/anion radical and generated molden files. I submitted these files to Multiwfn > Population Analysis > Mulliken. I did get the spin population for the N+1 below
Population of atoms:
     Atom      Alpha pop.   Beta pop.    Spin pop.     Atomic charge
     1(C )      2.09026      2.00568      0.08457        -0.09594
     2(C )      1.97617      1.89595      0.08023         0.12788
      :                                                                            ....

but obtained a different one for N-1 that looks like the following
Population of atoms:
Atom     1(C )    Population:  3.99823433    Net charge:  0.00176567
Atom     2(C )    Population:  3.78793229    Net charge:  0.21206771
   :                                                                                         .....

which is appears to to be similar in form for the neutral molecule
Population of atoms:
Atom     1(C )    Population:  4.05190053    Net charge: -0.05190053
Atom     2(C )    Population:  3.83075642    Net charge:  0.16924358
   :                                                                                         .....

Am I doing something different?

Thank you.

Bernard

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