XXL Cages: Organometallic lattice with unusually large pores can house gases and ferrocene molecules

It’s full of holes and yet it holds together: Whether as a place to store gas molecules; for the separation of substances; as sensors, catalysts, and nanoreactors; or materials for optoelectronics, porous crystalline solids with a regular array of defined pores have become indispensable in science and technology.