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Three-center two-electron bond

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Multielectron Redox Chemistry of Uranium by Accessing the plus II Oxidation State and Enabling Reduction to a U(I) Synthon

Rosario Scopelliti, Marinella Mazzanti, Ivica Zivkovic, Anne-Sophie Chauvin

Thesynthesis of molecular uranium complexes in oxidation stateslower than +3 remains a challenge despite the interest for their multielectrontransfer reactivity and electronic structures. Herein, we report theone- and two-electron reduction of a U(III) com ...

2023

Synthesis of Chiral Cyclopentadienyl Complexes and Applications Towards C-H Functionalization

Benoît Daniel Bertrand Audic

Metal-catalysed C-H bond functionalization has received tremendous attention and developed rapidly over the past decades. Cyclopentadienyl (Cp) metal complexes and their asymmetric counterparts (CpX) are part of a central organometallic category empowering ...

EPFL2021

Pivotal role of the redox-active tyrosine in driving the water splitting catalyzed by photosystem II

Daniele Narzi, Leonardo Guidoni

Photosynthetic water oxidation is catalyzed by the Mn4Ca cluster in photosystem II (PSII). The nearby redox-active tyrosine (Y-Z) serves as a direct electron acceptor of the Mn4Ca cluster and it forms a low-barrier H-bond (LBHB) with a neighboring histidin ...

ROYAL SOC CHEMISTRY2020

Equilibrium and Out-of-Equilibrium Adherence of Hydrogels against Polymer Brushes

Jennifer Mary Adrienne Alice Macron, Costantino Creton

At low pH, underwater adherence between poly(N,N-dimethylacrylamide) hydrogels and poly(acrylic acid) brushes is due to the formation of multiple hydrogen bonds. The effect of the key parameters controlling the formation of these interactions (contact time ...

American Chemical Society2018

Quadrupolar Benzobisthiazole-Cored Arylamines as Highly Efficient Two-Photon Absorbing Fluorophores

Vladislav Semak

A computer-aided design of novel D-pi-A-pi-D styrylamines containing five isomeric benzobisthiazole moieties as the electron-accepting core has revealed the linear centrosymmetric benzo[1,2-d:4,5-d']bisthiazole as the most promising building block for engi ...

Amer Chemical Soc2014

"New methods for indoles and [3,4]-fused oxindoles syntheses" and "Copper-catalyzed/mediated difunctionalization of alkenes with alkylnitriles"

Ala Bunescu

Two main topics were addressed in this manuscript: (1) New methods for indoles and [3,4]-fused oxindoles syntheses; (2) Copper-catalyzed/mediated difunctionalization of alkenes with alkylnitriles. Given the omnipresent character of the indole and oxindole ...

EPFL2014

Investigation of non-corrin cobalt(II)-containing sites in protein structures of the Protein Data Bank

Luciano Andres Abriata

Protein X-ray structures with non-corrin cobalt(II)-containing sites, either natural or substituting another native ion, were downloaded from the Protein Data Bank and explored to (i) describe which amino acids are involved in their first ligand shells and ...

Wiley-Blackwell2013

Redox properties of cobalt(II) complexes with azole-pyridines

Michael Graetzel, Mohammad Khaja Nazeeruddin

We report nine new homoleptic octahedral cobalt(II) complexes Co((NN)-N-boolean AND)(3) and Co((NNN)-N-boolean AND-N-boolean AND)(2) with bidentate or tridentate azole-pyridine ligands (where azole is 1,2,4-triazole or a substituted pyrazole). ...

Elsevier2013

Development of New Bicyclic Peptide Formats and their Application in Directed Evolution

Shiyu Chen

Cyclic peptides have a range of properties that make them attractive as therapeutics such as high binding affinity, good target selectivity and low toxicity. While most peptides in the clinic are derived from nature, various powerful in vitro evolution tec ...

EPFL2013

Theoretical investigation of the C-60/copper phthalocyanine organic photovoltaic heterojunction

Efthimios Kaxiras, Sheng Meng, Jun Ren

Molecular heterojunctions, such as the one based on copper phthalocyanine (CuPc) and carbon fullerene (C-60) molecules, are commonly employed in organic photovoltaic cells as electron donor-acceptor pairs. We have investigated the different atomic structur ...

2012

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