That's wonderful information, thank you very much. The veggies are a nice touch, any recommendations ? My daughter tells me I need to incorporate more of them in my diet.
I'm trying to educate myself in QM because I'm discovering that it is the only approach to boron that makes sense. I've been banging my head for years trying to reconcile boron with Classical Physics, but CP eventually concludes that it shouldn't even exist in the first place.
I'm an experimentalist, and have been researching solid-state boron cluster chemical-physics for decades and occasionally questioned my sanity because boron's so weird.
I have to start with inexplicable experimental artifacts, and then try to deduce the physics by deconstructing the tangible experimental phenomena common to things which shouldn't be happening at all.
Are you familiar with 'quantum electron hopping' between the two outer shells? A boron atom is truly schizophrenic because its valence is constantly changing as the electron 'hops' back and forth between the shells in a quantumish sort of way.
It's natural configuration is icosahedral, which gets to be really messy if each atom has the freedom to randomly flip valences. My head hurts every time I try to visualize the idea. Just to make things even more fun, it has two stable isotopes 20%$ 10B and 80% 11B, so in any given 12-atom icosahedron that stoichiometry becomes a game of statistical probability as well. Somehow the icosahedra have to work out an asymmetric packing density arrangement, and somewhere I stumbled on to a graphic with the title 'Icosahedron Charge Density', which claimed that "bonding does not happen at the vertices of the structure like one would imagine, but across the faces of it" Just found the source > http://icosahedralboronrichsolids.wordpress.com/
What do you do with boron ?