Unveiling the Transient Template in the Self-Assembly of a Molecular Oxide Nanowheel

@article{Miras2010UnveilingTT,
  title={Unveiling the Transient Template in the Self-Assembly of a Molecular Oxide Nanowheel},
  author={Haralampos N. Miras and Geoffrey J T Cooper and De‐Liang Long and Hartmut Bögge and Achim M{\"u}ller and Carsten Streb and Leroy Cronin},
  journal={Science},
  year={2010},
  volume={327},
  pages={72 - 74}
}
A Hidden Template The entropic challenge inherent in forming a ring-shaped molecule generally increases considerably with the size of the ring. Assuming that a linear precursor must bind its ends together, extending its length diminishes the likelihood of the opposite ends approaching one another. In the absence of an external force, how then can a family of molybdenum oxide rings, several nanometers in diameter (quite large at the molecular scale), self-assemble? Miras et al. (p. 72, see the… 

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References

SHOWING 1-10 OF 19 REFERENCES

Polyoxometalate clusters, nanostructures and materials: from self assembly to designer materials and devices.

In this critical review the synthetic and design approaches to the many polyoxometalate cluster types are presented encompassing all the sub-types of polyxometalates including, isopolyoxometAlates, heteropolyoxometricalates, and reduced molybdenum blue systems.

White Phosphorus Is Air-Stable Within a Self-Assembled Tetrahedral Capsule

Hydrophobic P4 molecules are rendered air-stable and water-soluble within the hydrophobic hollows of self-assembled tetrahedral container molecules, which form in water from simple organic subcomponents and iron(II) ions.

Highly controlled acetylene accommodation in a metal–organic microporous material

High levels of selective sorption of acetylene molecules as compared to a very similar molecule, carbon dioxide, onto the functionalized surface of a MOM are reported.

A route to high surface area, porosity and inclusion of large molecules in crystals

The design, synthesis and properties of crystalline Zn4O(1,3,5-benzenetribenzoate)2 are reported, a new metal-organic framework with a surface area estimated at 4,500 m2 g-1 that combines this exceptional level of surface area with an ordered structure that has extra-large pores capable of binding polycyclic organic guest molecules.

Strategies for the Construction of Supramolecular Compounds through Coordination Chemistry.

Three emerging synthetic strategies, the symmetry-interaction, directional-bonding, and weak-link synthetic approaches, all use metal centers as structural building blocks to rationally assemble molecular components into supramolecular metallocyclophanes.

Fluorous Nanodroplets Structurally Confined in an Organopalladium Sphere

This work reports the formation of a liquid-like fluorous droplet, composed of 24 perfluoroalkyl chains confined in the interior of a 5-nanometer-sized, roughly spherical shell that spontaneously assembled in solution from 12 palladium ions and 24 bridging ligands.

Soluble molybdenum blues-"des Pudels Kern".

The earlier tremendous interest in molybdenum blue solutions-an enigma for generations of chemists-became even more pronounced when it turned out that the basic building units correspond to giant

Post-synthesis alkoxide formation within metal-organic framework materials: a strategy for incorporating highly coordinatively unsaturated metal ions.

A new noncatenated metal-organic framework containing pendant alcohol functionalities was synthesized, and the incorporated metal ions are found to induce an unusual pattern of binding energetics for H(2): isosteric heats of adsorption increase, rather than decrease, with increasing H( 2) loading.

A Molecular Elevator

This molecular elevator is considerably more complex and better organized than previously reported artificial molecular machines and exhibits a clear-cut on-off reversible behavior, and it could develop forces up to around 200 piconewtons.