An investigation into cyano substituted polypyrazolylborate complexes of palladium, platinum and iron
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Abstract
Polypyrazolylborates, also known as scorpionates, have been important ligands in inorganic chemistry since their introduction in the 1960s by Trofimenko. Our research group has been working with cyanopyrazoles, which have a CN subsituent in the 4-position, and alkyl or aryl substituents at the 3-position, or 3-and 5-positions.
Reactions of palladium and platinum with Tp and Bp scorpionates have produced pyrazole complexes of interest, which were subsequently synthesized rationally. While no scorpionate complexes were completely characterized, the pyrazole complexes give information about the effects of the cyano group on the structure of compounds, especially when compared to similar compounds without the cyano substituent.
Two new iron(II) cyanoscorpionates,