AEI 63 |
| Greater synthetic control of polynuclear clusters can be achieved through the use of octahedral complexes utilizing a pentadentate ligand, which leaves only one open coordination site. Monomeric complexes featuring the pentadentate ligands PY5H2 (2,6-bis[bis(2-pyridyl)methyl]pyridine), PY5Me2 (2,6-bis[1,1-bis(2-pyridyl)ethyl]pyridine), and tBuPY5Me2 (2,6-bis[1,1-bis((5-tert-butyl-2-pyridyl)ethyl]pyridine) were prepared incorporating vanadium(II), chromium(II), manganese(II), iron(II), cobalt(II), and nickel(II). The sole open coordination site makes these molecules ideal for the study of magnetic coupling through bridging ligands. To this end, a series of vanadium(II) dimers was synthesized and the magnetic coupling was evaluated. These species serve as model systems for larger clusters and solids. Furthermore, polynuclear clusters have been prepared by combining PY5Me2 -supported metal complexes with second- and third-row metal cyanide complexes. These clusters were evaluated as potential single molecule magnets. |
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Academic Employment Initiative
8:00 PM-10:00 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Sci-Mix
Academic Employment Initiative |