Publications de Nadir Jori | EPFL Graph Search

Iron promoted end-on dinitrogen-bridging in heterobimetallic complexes of uranium and lanthanides

Rosario Scopelliti, Marinella Mazzanti, Nadir Jori

End-on binding of dinitrogen to low valent metal centres is common in transition metal chemistry but remains extremely rare in f-elements chemistry. In particular, heterobimetallic end-on N2 bridged complexes of lanthanides are unprecedented despite their ...

Royal Soc Chemistry2024

A trinuclear metallasilsesquioxane of uranium(III)

Rosario Scopelliti, Marinella Mazzanti, Ivica Zivkovic, Farzaneh Fadaei Tirani, Nadir Jori

The silsesquioxane ligand (Bu-i)(7)Si7O9(OH)(3) ((POSSH3)-P-iBu) is revealed as an attractive system for the assembly of robust polynuclear complexes of uranium(III) and allowed the isolation of the first example of a trinuclear U(III) complex ([U-3((POSS) ...

Royal Society of Chemistry2024

Tuning the reactivity of uranium towards small molecules in multimetallic complexes

Nadir Jori

One of the main goals of organometallic chemistry in the last decades was the activation of small molecule in mild reaction conditions. Even though multiple examples of catalytic cycles able to produce fine chemicals from cheap and abundant sources using t ...

EPFL2023

Dinitrogen cleavage by a dinuclear uranium(III) complex

Rosario Scopelliti, Marinella Mazzanti, Nadir Jori

Understanding the role of multimetallic cooperativity and of alkali ion-binding in the second coordination sphere is important for the design of complexes that can promote dinitrogen (N-2) cleavage and functionalization. Herein, we compare the reaction pro ...

2023

Heterometallic uranium/molybdenum nitride synthesis via partial N-atom transfer

Rosario Scopelliti, Marinella Mazzanti, Luciano Barluzzi, Nadir Jori

The reaction of a terminal Mo(II) nitride with a U(III) complex yields an heterodimetallic U-Mo nitride which is the first example of a transition metal-capped uranium nitride. The nitride is triply bonded to U(V) and singly bonded to Mo(0) and supports a ...

Royal Society of Chemistry2022

Cation assisted binding and cleavage of dinitrogen by uranium complexes

Andrzej Sienkiewicz, Rosario Scopelliti, Marinella Mazzanti, Ivica Zivkovic, Nadir Jori

The role of alkali promoters in N-2 cleavage by metal complexes remains poorly understood despite its relevance to the industrial production of ammonia from N-2. Here we report a series of alkali bound-oxo-bridged diuranium(iii) complexes that provide a un ...

ROYAL SOC CHEMISTRY2022

Stepwise Reduction of Dinitrogen by a Uranium-Potassium Complex Yielding a U(VI)/U(IV) Tetranitride Cluster

Marinella Mazzanti, Ivica Zivkovic, Farzaneh Fadaei Tirani, Luciano Barluzzi, Nadir Jori

Multimetallic cooperativity is believed to play a key role in the cleavage of dinitrogen to nitrides (N3-), but the mechanism remains ambiguous due to the lack of isolated intermediates. Herein, we report the reduction of the complex [K-2{[U-V(OSi((OBu)-Bu ...

2021

Carbon Dioxide Reduction by Multimetallic Uranium(IV) Complexes Supported by Redox-Active Schiff Base Ligands

Rosario Scopelliti, Marinella Mazzanti, Marta Falcone, Nadir Jori

The synthesis, structure, and reactivity with CO2 and CS2 of new U(IV) complexes with a redox-active Schiff base are reported. The reaction of UI3 with the heptadentate Schiff base ligand 2,2',2 ''-tris(salicylideneimino)-triethylamine (trensal) did not le ...

2020

Carbon dioxide reduction by lanthanide(iii) complexes supported by redox-active Schiff base ligands

Rosario Scopelliti, Marinella Mazzanti, Davide Toniolo, Nadir Jori

Here we have explored the ability of Schiff bases to act as electron reservoirs and to enable the multi-electron reduction of small molecules by lanthanide complexes. We report the reductive chemistry of the Ln(iii) complexes of the tripodal heptadentate S ...

2020