The development of highly complex chemical systems, self-assembled by the donor-acceptor and/or noncovalent interactions, lies at the core of supramolecular chemistry.

Recently, increasing attention has been paid to structurally adaptable molecular systems and robust noncovalent microporous materials (NPMs), also known as molecular porous materials (MPMs) or porous molecular crystals (PMCs), based on the self-assembly of discrete molecules driven by weak interactions. The utilization of molecular metal clusters as building units of NPMs is a promising strategy, combining the versatile functionality of organic and inorganic subunits with the softness and flexibility of molecular solids controlled by noncovalent interactions.

However, the development of robust porous functional frameworks based on self-assembly driven by noncovalent forces is still highly challenging.