Flexible metal-organic framework
Some
Formally, a metal-organic framework is a coordination network with organic ligands containing potential voids. A coordination network is a coordination compound extending, through repeating coordination entities, in one dimension, but with cross-links between two or more individual chains, loops, or spiro-links, or a coordination compound extending through repeating coordination entities in two or three dimensions. A coordination polymer is a coordination compound with repeating coordination entities extending in one, two, or three dimensions.[6]
Generally, this kind of material has a well-defined structure, but sometimes some external stimuli can affect its structure, resulting in a different structure without breaking the overall network. A variety of external stimuli like
One often discussed example of flexible metal-organic framework is the family of MIL-53 materials,[8] featuring one-dimensional diamond-shaped pores that can expand or contract upon stimulation, such as adsorption of guest molecules (solvent, water, gases, etc.), changes in temperature, and mechanical pressure.
References
See also
- Coordination chemistry
- Coordination polymers
- Metal–inorganic framework
- Organometallic chemistry
- Zeolitic imidazolate frameworks
- Solid sorbents for carbon capture