The Synthesis and characterization of monometallic and bimetallic Pd-PNP complexes

Authors

Lorinda Asmus, College of Saint Benedict/Saint John's University

Document Type

Thesis

Publication Date

1998

Disciplines

Chemistry

Advisor

Brian Johnson

Abstract

The bridging ligand, 2-[bis(diphenylphosphino)methyl]pyridine (PNP), is ideal for synthesizing mono- and bi-metallic catalysts due to its potential to be bidentate (P-P or P-N) or tridentate and its ability to bind to one or more metals. Three Pd-PNP complexes, [Pd(PNP)₂]⁺² (1) and two complexes resulting from the removal of one or two methine pronouns (2 and 3), have been synthesized. The removal of one methine proton changes the PNP bidentate binding mode. In complex 1 and 3, the two PNP ligands are P-P bound. However, upon the removal of one methine proton, one of the PNP ligands in 2 changes to P-N binding. This change in coordination of the PNP ligand upon the removal of one or two methine protons may provide control over the ability to add a second metal in future research. All complexes were characterized with FT-IR, ³¹P{1H} NMR, ¹H NMR and x-ray crystallography.

Copyright Statement

Available by permission of the author. Reproduction or retransmission of this material in any form is prohibited without expressed written permission of the author.

Recommended Citation

Asmus, Lorinda, "The Synthesis and characterization of monometallic and bimetallic Pd-PNP complexes" (1998). Honors Theses, 1963-2015. 674.
https://digitalcommons.csbsju.edu/honors_theses/674