Evaluation of a suite of Ru and Rh metal complexes reveals minimum back donation to the 1-nitrogen. oxyanion ligand, even upon one-electron reduction. This reveals some surprising consequences of reduction, including redox activity at pyridine and nitrogen oxyanion dissociation.
A theoretical roadmap for the best oxygen reduction activity in …
Sep 9, 2022 · Interestingly, p z of the Te 1 atom was also the main contribution for the back-donation. Therefore, Te atoms could accept and donate electrons from and to O 2 molecules simultaneously, while the p z orbital of the Te 1 atom contributes the most.
Layered SiC Sheets: A Potential Catalyst for Oxygen Reduction …
Jan 22, 2014 · The renowned mechanism of CO-metal interaction, namely, via donation from CO-5σ to metals and back-donation from metals to CO-2π* orbital, is applicable for CO adsorbed on Pt(111) 34,35. This is confirmed by the fact of electron depletion at CO-5σ and partially occupied CO-2π*, which is empty above the Fermi level in gas CO.
quantum chemistry - Can pi backdonation occur on non-metal …
May 2, 2019 · The common example of back-donation is the interaction of a CO molecule with a metal center (d-orbitals) on a surface. Can a similar mechanism occur between CO and a non-metal center, like oxygen on a surface (like in an oxide)?
Illustration of the back-donation from the Fe eg orbital to the oxygen …
Download scientific diagram | Illustration of the back-donation from the Fe eg orbital to the oxygen antibonding π* orbital. from publication: Iron–Nitrogen Coordination in Modified Graphene...
Back donation | PPT - SlideShare
Dec 14, 2018 · This presentation discusses back-donation of CO ligands to transition metals. Back-donation occurs when electrons from the metal's d-orbitals are donated into the CO ligand's anti-bonding π* orbital, weakening the carbon-oxygen bond.
Construction of π back donation active site in metal-organic …
Oct 1, 2023 · In this work, we developed robust π back donation active sites within MOF-303 through the immobilization of Cu I ions onto dual-pyrazol sites in a synergistic manner, resulting in improved C 2 H 2 affinity and enhanced separation performance of C 2 H 2 /CO 2.
How π back-donation quantitatively controls the CO stretching …
The CO stretching response upon coordination to a metal M to form [(L) n M(CO)] m complexes (L is an auxiliary ligand) is investigated in relation to the σ donation and π back-donation components of the M–CO bond and to the electrostatic effect exerted by …
Synergetic electron donation and back-donation interactions in …
Sep 16, 2022 · There are synergetic electron donation and back-donation interactions in (Au − CO 2) − complex, involving not only the filled 5d/6s atomic orbitals of Au − but also its empty 6 p atomic orbital. The reaction of Au − with CO 2 has been investigated by …
Pi backbonding - Wikipedia
A description of the bonding of π-conjugated ligands to a transition metal which involves a synergic process with donation of electrons from the filled π-orbital or lone electron pair orbital of the ligand into an empty orbital of the metal (donor–acceptor bond), together with release (back donation) of electrons from an nd orbital of the ...