Two classes of novel ligands have been developed. A class of &lt;span style="line-height:20.8px"&gt;phosphonium based, &lt;/span&gt;cationic ligands with binding occuring via two (Dipyphos, [Ph2P(2-py)2]+) or three (Tripyphos, [PhP(2-py)3]+) pyridyl nitrogens have been synthesized and will be described. Metal complexes of these ligands and their reactivity will be presented. Progress towards an imidizole phosphonium "Scorpionium" ligand will also be presented. &lt;span style="line-height:20.8px"&gt;An additional class of &lt;/span&gt;tetradentate nacnac ligands ([{[2-PR2-4-CH3-C6H3]N=C(CH3)}2CH]H; &lt;span style="line-height:20.8px"&gt;R = &lt;/span&gt;i&lt;span style="line-height:20.8px"&gt;Pr, Ph&lt;/span&gt;) have also been synthesized. The synthesis, metal complexation, and reactivity of these PNacP complexes will be presented.

Novel ligands for organometallic catalysis

251st National Meeting (2016)

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