you have some example of your input? you put CPHF=rdfreq?

I used CPHF=rdfreq but it wasn't worked so I did according to the youtube video below

https://www.youtube.com/watch?v=mzeBl2o4gS0&list=LL&index=6

It worked. I got value of polarizability and hyperpolarizability. Do you think Using CPHF=rdfreq would give different polarizability values?

With polar=enonly you calculate the static polarizability and hyper, with numeric methods you get these derivatives and with CPHF you get the same derivatives but with analityc form, in theory you must get values very similar, the advantage of CPHF is that also you can calculate the dinamic polarizability and hyper this mean that you can get values at different frequency.

Thank you Ismael Vargas Rodriguez

your suggestions were very helpful!

Ismael Vargas Rodriguez I tried calculating dynamic polarizability using CPHF=Rdfreq

can you please tell me where is the exact values of polarizability?

I am attaching my input and output files below

you need put the keyword polar i did a example simple with your input with a basis 3-21g, i add this input and log

in the image you can see the results of polarizability the first is the static polarizability and the second the dinamic the iso= isotropic polarizability and the aniso= anisotropic, you can compare with your previus calculation with polar=enonly the results must be similar to the static polarizability (the first part), you can recalculate with the correct basis set

you can get mor information in the manual of multiwfn in this manual explain about polarizability and hyper

Thank you so much Ismael Vargas Rodriguez

I shall look into Multiwfn.

What should we use either static or dynamic hyperpilrizability to write nlo properties in manuscripts