Intracellular bound chlorophyll residues identify 1 Gyr-old fossils as eukaryotic algae

MC Sforna, CC Loron, CF Demoulin, C François… - Nature …, 2022 - nature.com
The acquisition of photosynthesis is a fundamental step in the evolution of eukaryotes.
However, few phototrophic organisms are unambiguously recognized in the Precambrian …

General Spin-Restricted Open-Shell Configuration Interaction Approach: Application to Metal K-Edge X-ray Absorption Spectra of Ferro-and Antiferromagnetically …

T Leyser da Costa Gouveia, D Maganas… - The Journal of …, 2024 - ACS Publications
In this work, we present a generalized implementation of the previously developed restricted
open-shell configuration interaction singles (ROCIS) family of methods. The new method …

Direct metal–carbon bonding in symmetric bis (C–H) agostic nickel (I) complexes

W He, DD Beattie, H Zhou, EG Bowes, LL Schafer… - Chemical …, 2021 - pubs.rsc.org
Agostic interactions are examples of σ-type interactions, typically resulting from interactions
between C–H σ-bonds with empty transition metal d orbitals. Such interactions often reflect …

Xanes specroscopic diagnostics of the 3D local atomic structure of nanostructured materials

AN Kravtsova, LV Guda, OE Polozhentsev… - Journal of Structural …, 2018 - Springer
A review of current works on XANES spectroscopy applied for the determination of
parameters of a threedimensional local atomic structure of nanostructured materials is given …

Ligand binding at the A-cluster in full-length or truncated acetyl-CoA synthase studied by X-ray absorption spectroscopy

P Schrapers, J Ilina, CM Gregg, S Mebs, JH Jeoung… - Plos one, 2017 - journals.plos.org
Bacteria integrate CO2 reduction and acetyl coenzyme-A (CoA) synthesis in the Wood-
Ljungdal pathway. The acetyl-CoA synthase (ACS) active site is a [4Fe4S]-[NiNi] complex (A …

[PDF][PDF] Диагностика 3D локальной атомной структуры наноструктурированных материалов на основе спектроскопии XANES

АН Кравцова, ЛВ Гуда, ОЕ Положенцев… - Журнал структурной …, 2018 - nano.sfedu.ru
Прецизионное определение параметров локальной атомной структуры материалов
важно как с точки зрения фундаментальной науки для понимания природы …

Novel bonding motifs in low-valent nickel complexes: Dewar, Chatt, and Duncanson revisited

W He - 2021 - open.library.ubc.ca
Abstract The classic Dewar-Chatt-Duncanson (DCD) model describes the bonding in
transition metal-olefin complexes. In this framework, electron density can be bidirectionally …

Combination of advanced X-ray spectroscopy and quantum chemistry to determine electronic structures of metal-organic cofactors in proteins

N Schuth - 2018 - refubium.fu-berlin.de
Proteins with metal cofactors (metalloproteins) are capable to facilitate a large variety of
chemical processes and are involved in the most challenging catalytic reactions eg …