Group 10 complexes containing phosphinomethylamine ligands: Synthesis, structural analysis and electrochemical studies

Waggoner, Nolan W.; Spreer, Lindsay S.; Boro, Brian J.; DuBois, Daniel L.; Helm, Monte L.

doi:10.1016/j.ica.2011.07.001

Cited by 8 publications

(11 citation statements)

References 23 publications

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“…Another Pd II complex containing a pyridyl moiety was synthesized from an N-4-pyridyl α-aminophosphine at room 36 Reactions of diphenylphosphinomethylamines with [M II (triphos)OTf ](OTf ) (M = Pt, Pd) led to the corresponding tetracoordinated Pd II complexes in yields of 52-56% at room temperature (Scheme 10). 46 The complexes were tested as catalysts in electrochemical proton reduction, and showed modest activities.…”

Section: Anna Tripolszkymentioning

confidence: 99%

Synthesis of platinum, palladium and rhodium complexes of α-aminophosphine ligands

et al. 2018

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α-Aminophosphine-type ligands are of interest as building blocks of transition metal complexes. This review focuses on the utilization of α-aminophosphines as monodentate and bidentate ligands in platinum, palladium and rhodium complexes. Besides the linear derivatives, the applications of cyclic α-aminophosphines as ligands are also summarized. Various aspects, such as synthesis, structure and applications, as well as the catalytic activity of these complexes are discussed.

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Section: Anna Tripolszkymentioning

confidence: 99%

Synthesis of platinum, palladium and rhodium complexes of α-aminophosphine ligands

et al. 2018

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“…The M(PN) catalysts, where M is the metal center, differ from the Ni(P 2 N 2 ) 2 catalysts in that they are monodentate rather than multidentate and contain a very flexible, nonpositioned phosphinomethylamine ligand. 14 These catalysts have only been synthesized with Pd and Pt metal centers and with the R substituents as phenyl. In the presence of acid, these complexes function as hydrogen production catalysts.…”

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“…In the presence of acid, these complexes function as hydrogen production catalysts. 14 We utilized theoretical methods to examine the catalysts depicted in Figure 1 with various substituents. We studied the M(PN) complexes with Ni metal centers, although such catalysts have not been synthesized yet.…”

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“…21,22 The starting geometries were obtained from crystal structures for the Ni(PNP) 2 system, 4 the Ni(7P 2 N) 2 system, 7 and the M(PN) system. 14 The crystal structures were manually altered to the boat conformation and/or to incorporate the appropriate substituents to obtain the starting conditions for the systems studied. Table S1 in the Supporting Information provides a comparison between the distances obtained from the geometry optimizations of the bare, unprotonated (M 2+ ) catalysts and the available crystal structures.…”

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confidence: 99%

“…Compared to the Ni(P 2 N 2 ) 2 catalysts, these catalysts could potentially have somewhat more flexible pendant amines or smaller equilibrium Ni–N distances. The M(PN) catalysts, where M is the metal center, differ from the Ni(P 2 N 2 ) 2 catalysts in that they are monodentate rather than multidentate and contain a very flexible, nonpositioned phosphinomethylamine ligand . These catalysts have only been synthesized with Pd and Pt metal centers and with the R substituents as phenyl.…”

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Theoretical Design of Molecular Electrocatalysts with Flexible Pendant Amines for Hydrogen Production and Oxidation

Fernandez

Horvath

Hammes‐Schiffer

2013

J. Phys. Chem. Lett.

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The design of hydrogen oxidation and production electrocatalysts is important for the development of alternative renewable energy sources. The overall objective is to maximize the turnover frequency and minimize the overpotential. We use computational methods to examine a variety of nickel-based molecular electrocatalysts with pendant amines. Our studies focus on the proton-coupled electron transfer (PCET) process involving electron transfer between the complex and the electrode and intramolecular proton transfer between the nickel center and the nitrogen of the pendant amine. The concerted PCET mechanism, which tends to require a lower overpotential, is favored by a smaller equilibrium Ni-N distance and a more flexible pendant amine ligand, thereby decreasing the energetic penalty for the nitrogen to approach the nickel center for proton transfer. Our calculations provide predictions about designing catalysts that incorporate these properties. These design principles will be useful for developing the next generation of hydrogen catalysts.

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Coordination Chemistry of Phosphine Ligands With Pendant Amines

DuBois

Wiedner

Bullock

2021

Comprehensive Coordination Chemistry III

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Group 10 complexes containing phosphinomethylamine ligands: Synthesis, structural analysis and electrochemical studies

Cited by 8 publications

References 23 publications

Synthesis of platinum, palladium and rhodium complexes of α-aminophosphine ligands

Synthesis of platinum, palladium and rhodium complexes of α-aminophosphine ligands

Theoretical Design of Molecular Electrocatalysts with Flexible Pendant Amines for Hydrogen Production and Oxidation

Coordination Chemistry of Phosphine Ligands With Pendant Amines

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