INOR 92 |
| A variety of ligands related to PY5 have been synthesized that offer greater stability and solubility. Complexes featuring PY5H2 (2,6-bis(bis(2-pyridyl)methyl)pyridine; R = H, R' = H), PY5Me2 (2,6-bis(bis(2-pyridyl)ethyl)pyridine; R = Me, R' = H), and tBuPY5Me2 (2,6-bis(bis(5-tert-butyl-2-pyridyl)ethyl)pyridine; R = Me, R' = tBu) were prepared incorporating vanadium(II), manganese(II), iron(II) and cobalt(II) (Figure, left). These species were then used to synthesize a variety of ligand bridged dinuclear complexes for magnetic and electrochemical studies. The dinuclear complexes serve as model systems for larger clusters, and enable direct comparisons of magnetic coupling through the different bridging ligands. In addition, bridging ligands with three binding functionalities enabled the formation of trinuclear complexes, such as [(PY5H2Fe)3-1,3,5-(CN)3-Ph]6+ (Figure, right).
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Coordination Chemistry: Synthesis
1:30 PM-4:50 PM, Sunday, 10 September 2006 Moscone Center -- Room 302, Oral
Division of Inorganic Chemistry |
