Coordination cage
In chemistry, a coordination cage is a type of coordination compounds with cavities that can engage in host-guest chemistry. They usually consist of several metal centres linked with organic ligands.[1][2]
Metallaprisms [edit]
Metallaprisms are a popular kind of coordination cage. In these compounds, six metal centres are linked with ligands to form an array of approximate D3h symmetry. They typically have conformationally-flexible cavities into which a variety of guest molecules bind.
The synthesis of some metallaprisms starts with [(η6-p-cymene)6Ru6(μ3-tpt-κN)2(μ-C6HRO4- κO)3]6+ using the linker of 2,4,6-tri(pyridine-4-yl)-1,3,5-triazine (tpt). Various guest molecules have been encapsulated in the hydrophobic cavity of metallaprisms. A few examples of guests are bioconjugate derivatives, metal complexes, and nitroaromatics.[3]
References [edit]
- ^ Fujita, Makoto; Tominaga, Masahide; Hori, Akiko; Therrien, Bruno "Coordination Assemblies from a Pd(II)-Cornered Square Complex" Accounts of Chemical Research 2005, volume 38, 369-378. doi:10.1021/ar040153h
- ^ Ward, Michael D. "Polynuclear coordination cages" Chemical Communications, 2009, 4487-4499. doi:10.1039/B906726B
- ^ Severin, Kay "Supramolecular chemistry with organometallic half-sandwich complexes" Chemical Communications 2006, pp. 3859-3867. doi:10.1039/B606632C
