Metal-Ligand Polyhedra: Difference between revisions
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==Ligand Angle vs. Polyhedron Size== | ==Ligand Angle vs. Polyhedron Size== | ||
The dipyridylthiphene ligand pictured above, in the M24L48 polyhedron, has a bend angle of 149<sup>o</sup><ref name="sun-fujita-2010" />. A ligand with a sharper bend of | The dipyridylthiphene ligand pictured above, in the M24L48 polyhedron, has a bend angle of 149<sup>o</sup><ref name="sun-fujita-2010" />. A ligand with a sharper bend of 127<sup>o</sup> (dipyridylfuran<ref>Dipyridylfuran differs from dipyridylthiophene in that oxygen replaces the sulfur.</ref>) forms a smaller polyhedron, M12L24<ref name="tominaga-fujita-2004">PMID: 15455450</ref>. Interestingly, mixtures of the two ligands (149 and 127 degrees) form only one size of polygon: a 3:7 mixture respectively (and up to 10:0) forms only M24L48, while a 2:8 mixture (and down to 0:10) forms only M12L24<ref name="sun-fujita-2010" />. A ligand with an even sharper bend of 90<sup>o</sup> forms M6L12<ref name="suzuki-fujita-2009">PMID: 19294246</ref>. | ||
==Significance== | ==Significance== | ||