Water site headerMasthead Island, Great Barrier Reef  go to Water Visitor Book contributions
Go to my page Water Structure and Science

Hydration and Giant Oxomolybdate Clusters

The {Mo154} nanowheel ([(Mo)Mo5Mo5O33.(H2O)5].(H2O)n) is shown below [1182] without any linked water molecules. It is torus-shaped with seven-fold symmetry and highly hydrophilic surfaces. There are 14 pentagonal (MoVI)MoVI5 groups, alternating with seven on each side of the wheel.

 


Spin
get PDB file

 

The arrangement of water around {Mo154} nanowheels is similar to the icosahedral clustering proposed in water. Two {Mo154} nanowheels are shown below surrounded by their water clusters and by linking through two pentagonal boxes, with one associated with each [(Mo)Mo5Mo5O33.(H2O)5] anchor point.

 


Spin
get PDB file

 

Two {Mo154}2 dimers are shown below, forming a tetramer {Mo154}4, stabilized by four of the hydrogen-bonded linking water clusters. The cluster only has its hydration water that may be concerned with linking {Mo154} nanowheels with the remaining hydration water removed for clarity.

 


Spin
get PDB file

 

The nanosphere's final assembly is made up of distorted hexagons in such a way that undistorted pentagons and hexagons are also formed (see below where only the skeleton of the 90 nm diameter nanosphere is shown).

 


Spin
get PDB file

 

 

These animations use Jmol: an open-source Java viewer for chemical structures in 3D. Use the mouse for control.

 

 

Home | Site Index | Back: Giant Oxomolybdate Clusters | Polyoxomolybdate nanodrop | LSBU | Top

 

This page was established in 2007 and last updated by Martin Chaplin on 5 August, 2021


Creative Commons License
This work is licensed under a Creative Commons Attribution
-Noncommercial-No Derivative Works 2.0 UK: England & Wales License