title: Structural, spectroscopic, and theoretical elucidation of a redox-active pincer-type ancillary applied in catalysis.
abstract: Pincer-type ligands are believed to be very robust scaffolds that can support multifarious functionalities as well as highly reactive metal motifs applied in organometallic chemistry, especially in the realm of catalysis. In this paper, we describe the redox and, therefore, noninnocent behavior of a PNP (PNP- = N[2-P(CHMe2)2-4-methylphenyl]2) pincer ancillary bound to nickel. A combination of structural, spectroscopic, and theoretical techniques suggests that this type of framework can house an electron hole when coordinated to Ni(II).
authors.affiliation: Department of Chemistry and the Molecular Structure Center, Indiana University, Bloomington, Indiana 47405, USA.
authors.forename: Debashis
authors.initials: D
authors.lastname: Adhikari
authors.forename: Susanne
authors.initials: S
authors.lastname: Mossin
authors.forename: Falguni
authors.initials: F
authors.lastname: Basuli
authors.forename: John C
authors.initials: JC
authors.lastname: Huffman
authors.forename: Robert K
authors.initials: RK
authors.lastname: Szilagyi
authors.forename: Karsten
authors.initials: K
authors.lastname: Meyer
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Mindiola
mesh_terms: D002384:Catalysis; D002412:Cations / Q000138:chemical synthesis / Q000737:chemistry; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods; D005609:Free Radicals / Q000138:chemical synthesis / Q000737:chemistry; D008024:Ligands; D008958:Models, Molecular; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010084:Oxidation-Reduction; D011789:Quantum Theory; D013052:Spectrometry, X-Ray Emission / Q000379:methods; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D014961:X-Ray Diffraction
chemical_list: D002412:Cations; D005609:Free Radicals; D008024:Ligands; D009942:Organometallic Compounds; D009532:Nickel