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

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)6Ru63-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

  1. Fujita, Makoto; Tominaga, Masahide; Hori, Akiko; Therrien, Bruno (2005). "Coordination Assemblies from a Pd(II)-Cornered Square Complex". Accounts of Chemical Research. 38: 369–378. doi:10.1021/ar040153h.
  2. Ward, Michael D. "Polynuclear coordination cages". Chemical Communications. 2009: 4487–4499. doi:10.1039/B906726B.
  3. Severin, Kay. "Supramolecular chemistry with organometallic half-sandwich complexes". Chemical Communications. 2006: 3859–3867. doi:10.1039/B606632C.
This article is issued from Wikipedia - version of the 2/21/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.