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

Dodecahedra Showing a Variety of Puckering



Spin
get PDB file

Dodecahedron

 


Spin
get PDB file

Octahedral hole


Spin
get PDB file

Tetrahedral hole

 


Spin
get PDB file

Cubic hole

 

In water, for all vertices, including puckered vertices, there will be the possibility of another link (hydrogen bond) along the radii going outwards. There are five, ten, or twenty equivalent ways these puckered dodecahedra can form for the cubic, tetrahedral, and octahedral holes, respectively. The figures show the maximum amount of puckering when the non-bonded distance between the inner molecules (the edges of the holes) is the same as the bonded distance between two neighbors. In practice, a lesser degree of puckering is to be expected.

 

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

 

 

Home | Site Index | Back: Notes | Clathrate cavities | LSBU | Top

 

This page was established in 2003 and last updated by Martin Chaplin on 3 August, 2021


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