Hi all... I know that this isn't necessarily an Artemis solution, but there is an option/module in SIXPACK (that other IFEFFIT interface) to do just what you've been asking about -- create simple single scattering paths between two atoms in a variety of coordination environments (tetrahedral, octahedral, etc). It has a nice periodic table interface to boot. I use it occasionally to do some quick and dirty fitting -- I do agree with Scott that its not always the most accurate way to go about things. The resulting FEFF file is placed in a FEFF folder in the sixpack root directory. Hope that helps some. Sam