Status of reactive non-heme metal–oxygen intermediates in chemical and enzymatic reactions

K Ray, FF Pfaff, B Wang, W Nam - Journal of the American …, 2014 - ACS Publications
Selective functionalization of unactivated C–H bonds, water oxidation, and dioxygen
reduction are extremely important reactions in the context of finding energy carriers and …

Understanding and Breaking Scaling Relations in Single-Site Catalysis: Methane to Methanol Conversion by FeIVO

TZH Gani, HJ Kulik - Acs Catalysis, 2018 - ACS Publications
Computational high-throughput screening is an essential tool for catalyst design, limited
primarily by the efficiency with which accurate predictions can be made. In bulk …

Synthetic Advances for Mechanistic Insights: Metal–Oxygen Intermediates with a Macrocyclic Pyridinophane System

D Jeong, K Kim, Y Lee, J Cho - Accounts of Chemical Research, 2023 - ACS Publications
Conspectus Metalloenzymes, which are proteins containing earth-abundant transition-metal
ions as cofactors in the active site, generate various metal–oxygen intermediates via …

Hydrogen‐Bonding Interactions Trigger a Spin‐Flip in Iron (III) Porphyrin Complexes

D Sahoo, MG Quesne, SP de Visser… - Angewandte …, 2015 - Wiley Online Library
A key step in cytochrome P450 catalysis includes the spin‐state crossing from low spin to
high spin upon substrate binding and subsequent reduction of the heme. Clearly, a weak …

Radical rebound hydroxylation versus H-atom transfer in non-heme iron (III)-hydroxo complexes: reactivity and structural differentiation

MJ Drummond, CL Ford, DL Gray… - Journal of the …, 2019 - ACS Publications
The characterization of high-valent iron centers in enzymes has been aided by synthetic
model systems that mimic their reactivity or structural and spectral features. For example, the …

Distinct Reactivity Modes of a Copper Hydride Enabled by an Intramolecular Lewis Acid

EE Norwine, JJ Kiernicki, M Zeller… - Journal of the American …, 2022 - ACS Publications
We disclose a 1, 4, 7-triazacyclononane (TACN) ligand featuring an appended boron Lewis
acid. Metalation with Cu (I) affords a series of tetrahedral complexes including a boron …

[HTML][HTML] Tuning the reactivity of mononuclear nonheme manganese (IV)-oxo complexes by triflic acid

J Chen, H Yoon, YM Lee, MS Seo, R Sarangi… - Chemical …, 2015 - pubs.rsc.org
Triflic acid (HOTf)-bound nonheme Mn (IV)-oxo complexes,[(L) MnIV (O)] 2+–(HOTf) 2 (L=
N4Py and Bn-TPEN; N4Py= N, N-bis (2-pyridylmethyl)-N-bis (2-pyridyl) methylamine and Bn …

Role of ferryl ion intermediates in fast Fenton chemistry on aqueous microdroplets

AY Gu, C Musgrave, WA Goddard III… - Environmental …, 2021 - ACS Publications
In the aqueous environment, FeII ions enhance the oxidative potential of ozone and
hydrogen peroxide by generating the reactive oxoiron species (ferryl ion, FeIVO2+) and …

Hydrogen Bonds Dictate the Coordination Geometry of Copper: Characterization of a Square‐Planar Copper (I) Complex

EW Dahl, NK Szymczak - Angewandte Chemie, 2016 - Wiley Online Library
Abstract 6, 6′′‐Bis (2, 4, 6‐trimethylanilido) terpyridine (H2TpyNMes) was prepared as a
rigid, tridentate pincer ligand containing pendent anilines as hydrogen bond donor groups in …

[HTML][HTML] An iron–oxygen intermediate formed during the catalytic cycle of cysteine dioxygenase

EP Tchesnokov, AS Faponle, CG Davies… - Chemical …, 2016 - pubs.rsc.org
Cysteine dioxygenase is a key enzyme in the breakdown of cysteine, but its mechanism
remains controversial. A combination of spectroscopic and computational studies provides …