Format of Presentation

Poster to be presented the Friday of the conference

Abstract

The development of environmentally conscious and cost-efficient catalysts is an important aspect of synthetic inorganic chemistry. Due to the cost and potentially harmful effects of many late row transition metals, the use of abundant, less toxic, first-row transition metals is necessary. We are particularly interested in activating N-H Bonds in ammonia and amines.

Two new iminophosphine (bidentate N, P donor) ligands have been synthesized via Schiff Base Condensation of 2-(diphenylphosphino)benzaldehyde and corresponding anilines. Ligands are stable to atmospheric moisture and oxygen. Ligands have been characterized by 1H and 13C Nuclear Magnetic Resonance (NMR) spectroscopy. A characteristic resonance for the imine hydrogen is visible at ~8.8 ppm and ~163 ppm in 1H and 13C NMR spectra respectively. We have begun complexation reactions using Nickel (II) Triflate, Nickel (II) Chloride, and Nickel (0) Cyclooctadiene. We are working towards obtaining crystal structures via X-ray crystallography. Once complexes have been characterized, we will carry out catalytic studies with the intent of activating N-H bonds in ammonia and amines.

Department

Chemistry

Faculty Advisor

Dipesh Prema

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Synthesis and Characterization of Novel Iminophosphine Ligands and their Complexes

The development of environmentally conscious and cost-efficient catalysts is an important aspect of synthetic inorganic chemistry. Due to the cost and potentially harmful effects of many late row transition metals, the use of abundant, less toxic, first-row transition metals is necessary. We are particularly interested in activating N-H Bonds in ammonia and amines.

Two new iminophosphine (bidentate N, P donor) ligands have been synthesized via Schiff Base Condensation of 2-(diphenylphosphino)benzaldehyde and corresponding anilines. Ligands are stable to atmospheric moisture and oxygen. Ligands have been characterized by 1H and 13C Nuclear Magnetic Resonance (NMR) spectroscopy. A characteristic resonance for the imine hydrogen is visible at ~8.8 ppm and ~163 ppm in 1H and 13C NMR spectra respectively. We have begun complexation reactions using Nickel (II) Triflate, Nickel (II) Chloride, and Nickel (0) Cyclooctadiene. We are working towards obtaining crystal structures via X-ray crystallography. Once complexes have been characterized, we will carry out catalytic studies with the intent of activating N-H bonds in ammonia and amines.

 

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