A verdazyl is a relatively stable type of free radical with the lone electron delocalized over four nitrogen atoms. We have synthesized the ditopic verdazyl ligand 1   and are investigating the coordination of metal ions to form grid complexes. Verdazyl ligand 1 was synthesizedby reacting a bis-hydrazone with triphosgene and BOC protected isopropyl hydrazine; then the product of this reaction was deprotected; the deprotected molecule was oxidized, completing the synthesis. The ligand was characterized by mass spectrometry and ESR. Coordination to nickel gave a tetrameric grid complex identified by ESI-MS. Further characterization will be through magnetic susceptibility, UV-vis, electrochemistry and X-ray crystallography.

Synthesis of a ditopic verdazyl ligand and investigation of its coordination to metals

245th National Meeting (2013)

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