Pd is FCC at 389 pm. Pd atom radius is 137 pm (interesting number :-). This leaves 115 pm which allows the 102 pm NH3 molecule ideal for structuring but is challenging for the 188 pm Ar.
I'm gonna sleep on this. BTW, what is the Van der Waals radius of deuterium? (too lazy to look it up now.) Terry On Wed, Sep 9, 2009 at 6:43 PM, Terry Blanton <hohlr...@gmail.com> wrote: > On Wed, Sep 9, 2009 at 5:39 PM, Jed Rothwell <jedrothw...@gmail.com> wrote: >> Terry Blanton wrote: >> >> Has there been any progress on the Matthey Pd? >> >> As far as I know they stopped working on it after the IMRA project in France >> collapsed. > > Considering Abd's goals, this gives us a lot to think about. Ammonia > vs Argon for crystallization could very well be the key. It's kind of > like a spacer used in the construction of the structure. It likely > results in different containment figures for the interstitial > deuterium. > > Reading the testimony before Congress in 1989 combined with this > information could be quite telling. I think this is a geometry > problem. > > Thanks, Jed. > > Terry >
