![](https://secure.gravatar.com/avatar/9d73522b5475bc3f75797b1d681b5e3c.jpg?s=120&d=mm&r=g)
25 Aug
2014
25 Aug
'14
3:35 a.m.
Hi everyone, I am working on a series of crystals with overall same framework structure plus a different extra part which attaches to the framework. I want to compare the electron density maps of the crystals by overlapping the frameworks and see how the extra parts differ from each other. Is there a way I can do it? Thank you very much for your help! Sincerely, Xiang -- Li Xiang Department of chemistry, Purdue University Email:[email protected]