Metal–Sulfur Compounds in N2 Reduction and Nitrogenase-Related Chemistry

K Tanifuji, Y Ohki - Chemical reviews, 2020 - ACS Publications
Transition metal–sulfur (M–S) compounds are an indispensable means for biological
systems to convert N2 into NH3 (biological N2 fixation), and these may have emerged by …

Activation of unsaturated small molecules by bio-relevant multinuclear metal-sulfur clusters

K Tanifuji, S Ohta, Y Ohki, H Seino - Coordination Chemistry Reviews, 2023 - Elsevier
The high affinity of sulfur (S) for transition metal ions (M), as well as the flexible M− S
bonding and bridging modes, enable the formation of a wide range of multi-metallic …

Mechanism of Radical S-Adenosyl-l-methionine Adenosylation: Radical Intermediates and the Catalytic Competence of the 5′-Deoxyadenosyl Radical

MN Lundahl, R Sarksian, H Yang… - Journal of the …, 2022 - ACS Publications
Radical S-adenosyl-l-methionine (SAM) enzymes employ a [4Fe–4S] cluster and SAM to
initiate diverse radical reactions via either H-atom abstraction or substrate adenosylation …

Terminal Hydride Complex of High-Spin Mn

A Drena, A Fraker, NB Thompson… - Journal of the …, 2024 - ACS Publications
The iron–molybdenum cofactor of nitrogenase (FeMoco) catalyzes fixation of N2 via Fe
hydride intermediates. Our understanding of these species has relied heavily on the …

The expanding utility of iron-sulfur clusters: Their functional roles in biology, synthetic small molecules, maquettes and artificial proteins, biomimetic materials, and …

AE Boncella, ET Sabo, RM Santore, J Carter… - Coordination Chemistry …, 2022 - Elsevier
The ubiquity, structural variation, and functional diversity of iron-sulfur (Fe-S) clusters in
biological environments has long fascinated scientists. In nature, Fe-S clusters form a variety …

Reversible Alkyl-Group Migration between Iron and Sulfur in [Fe4S4] Clusters

M Ye, AC Brown, DLM Suess - Journal of the American Chemical …, 2022 - ACS Publications
Synthetic [Fe4S4] clusters with Fe–R groups (R= alkyl/benzyl) are shown to release organic
radicals on an [Fe4S4] 3+–R/[Fe4S4] 2+ redox couple, the same that has been proposed for …

Exploiting molecular symmetry to quantitatively map the excited-state landscape of iron–sulfur clusters

BA Skeel, DLM Suess - Journal of the American Chemical Society, 2023 - ACS Publications
Cuboidal [Fe4S4] clusters are ubiquitous cofactors in biological redox chemistry. In the
[Fe4S4] 1+ state, pairwise spin coupling gives rise to six arrangements of the Fe valences …

Isostructural bridging diferrous chalcogenide cores [Fe II (μ-E) Fe II](E= O, S, Se, Te) with decreasing antiferromagnetic coupling down the chalcogenide series

E Zars, L Gravogl, MR Gau, PJ Carroll, K Meyer… - Chemical …, 2023 - pubs.rsc.org
Iron compounds containing a bridging oxo or sulfido moiety are ubiquitous in biological
systems, but substitution with the heavier chalcogenides selenium and tellurium, however, is …

The Elusive Mononitrosylated [Fe4S4] Cluster in Three Redox States

Y Kim, A Sridharan, DLM Suess - Angewandte Chemie, 2022 - Wiley Online Library
Iron‐sulfur clusters are well‐established targets in biological nitric oxide (NO) chemistry, but
the key intermediate in these processes—a mononitrosylated [Fe4S4] cluster—has not been …

Valence Localization in Alkyne and Alkene Adducts of Synthetic [Fe4S4]+ Clusters

AC Brown, DLM Suess - Inorganic chemistry, 2022 - ACS Publications
Reported herein are alkyne and alkene adducts of synthetic [Fe4S4]+ clusters that model
intermediates and inhibitor-bound states in enzymes involved in isoprenoid biosynthesis …