INOR 160 |
| As solvent choice can affect product formation in systems with multiple coordination equilibria, the use of non-traditional solvents, like ionic liquids, has become an area of interest for synthetic chemists. The deprotonated form of the ligand, n-(phosphonomethyl)iminodiacetic acid, (HO)2POCH2N(CH2CO2H)2 (PMIDA), has multiple lone pairs which afford it a wide variety of bridging and chelating possibilities when bound to transition metals. Purple crystalline product has been produced in a reaction combining PMIDA, Co(II), and KOH in the ionic liquid ethylammonium nitrate (EAN). IR spectroscopy indicates that this purple product incorporates both the PMIDA ligand and Co(II). Changing the ionic liquid to ECOENG 212, 1-ethyl-3-methylimidazolium ethylsulfate, alters the product produced. Further investigation of the initial EAN synthesis includes altering reaction ratios, the source of hydroxide, the water content of the ionic liquid used and the transition metals and phosphonate ligands used. |
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Coordination Chemistry: Characterization and Applications
7:00 PM-10:00 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster
Sci-Mix
Division of Inorganic Chemistry |