Re: [ccp4bb] (scattering factors) f and f" for Sr Heavy atom

iday, January 22, 2021 13:36 To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] (scattering factors) f and f" for Sr Heavy atom One can also use: $ gemmi fprime Sr --wavelength=1.2782 Element E[eV]Wavelength[A] f' f" Sr9699.91 1.2782 -0.637561.3067

Re: [ccp4bb] (scattering factors) f and f" for Sr Heavy atom

ux?Element=Sr > > <http://www.ruppweb.org/cgi-bin/anoweb_linux?Element=Sr&iano=1&nresi=100&iwavl=K&w1=Cu&w2=1000&w3=2&w4=1&w5=700&anoweb=Submit> > > &iano=1&nresi=100&iwavl=K&w1=Cu&w2=1000&w3=2&w4=1&w5=700&a

Re: [ccp4bb] (scattering factors) f and f" for Sr Heavy atom

=Sr&iano=1&nresi=100&iwavl=K&w1=Cu&w2=1000&w3=2&w4=1&w5=700&anoweb=Submit> &iano=1&nresi=100&iwavl=K&w1=Cu&w2=1000&w3=2&w4=1&w5=700&anoweb=Submit HTH, BR From: CCP4 bulletin board On Behalf Of rohit kumar Sent: Frid

Re: [ccp4bb] (scattering factors) f and f" for Sr Heavy atom

5=700&anoweb=Submit> &iano=1&nresi=100&iwavl=K&w1=Cu&w2=1000&w3=2&w4=1&w5=700&anoweb=Submit HTH, BR From: CCP4 bulletin board On Behalf Of rohit kumar Sent: Friday, January 22, 2021 11:36 To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] (scattering f

Re: [ccp4bb] (scattering factors) f and f" for Sr Heavy atom

here you can look them up: http://skuld.bmsc.washington.edu/scatter/AS_periodic.html (first have to calculate the energy) but I'm afraid that at that wavelength, below the edge, f' and f" are small, so not so likely to give good phase in

Re: [ccp4bb] (scattering factors) f and f" for Sr Heavy atom

http://skuld.bmsc.washington.edu/scatter/AS_periodic.html http://skuld.bmsc.washington.edu/scatter/data/Sr.dat Would probably work for initial values. 9700 eV for that wavelength. https://people.mbi.ucla.edu/sumchan/crystallography/ang-eV_convertor.html Phil Jeffrey Princeton On 1/22/21 2:36

Re: [ccp4bb] (scattering factors) f and f" for Sr Heavy atom

Hi check out the site http://www.bmsc.washington.edu/scatter/ set up by Ethan Merritt, it has lots of valuable info, and online tools to calculate stuff such as f'/f" for any desired element, etc HTH Alejandro El 22 ene. 2021, a la(s) 16:36, rohit kumar escribió: > Hello All, > > I have da

[ccp4bb] (scattering factors) f and f" for Sr Heavy atom

Hello All, I have data collected at Wavelength: 1.2782 (For Sr Heavy atom) with a resolution of 1.6 A. I was trying to run Crank in ccp4 for SAD phasing and It asks me to fill the values of (scattering factors) f and f" for the heavy atom. Can anyone please help with this, how to calculate or whe