Structural, spectroscopic, and theoretical elucidation of a redox-active pincer-type ancillary applied in catalysis.
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).
Adhikari
Debashis
D
Department of Chemistry and the Molecular Structure Center, Indiana University, Bloomington, Indiana 47405, USA.
Mossin
Susanne
S
Basuli
Falguni
F
Huffman
John C
JC
Szilagyi
Robert K
RK
Meyer
Karsten
K
Mindiola
Daniel J
DJ
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
D002412:Cations; D005609:Free Radicals; D008024:Ligands; D009942:Organometallic Compounds; D009532:Nickel