Publications de Marta Falcone | EPFL Graph Search

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

Small molecule activation by multimetallic uranium complexes supported by siloxide ligands

Marinella Mazzanti, Marta Falcone, Luciano Barluzzi

The synthesis and reactivity of uranium compounds supported by the tris-tert-butoxysiloxide ligand is surveyed. The multiple binding modes of the tert-butoxysiloxide ligand have proven very well suited to stabilize highly reactive homo- and heteropolymetal ...

Royal Society of Chemistry2019

The role of bridging ligands in dinitrogen reduction and functionalization by uranium multimetallic complexes

Kay Severin, Marta Falcone, Marinella Mazzanti, Farzaneh Fadaei Tirani, Ivica Zivkovic, Alberto Fabrizio, Julie Renée Michelle Andrez, Luciano Barluzzi

2019

Small Molecule Activation by Multimetallic Uranium Complexes

Marta Falcone

The development of new processes for the selective and sustainable transformation of abundant small molecules constitutes one of the major research areas in inorganic and organometallic chemistry. These molecules as CO2, CO, N2 and H2 are abundant reservoi ...

EPFL2019

CO2 and CO/H-2 Conversion to Methoxide by a Uranium(IV) Hydride

Rosario Scopelliti, Marinella Mazzanti, Marta Falcone

Here we show that a scaffold combining siloxide ligands and a bridging oxide allows the synthesis and characterization of the stable dinuclear uranium(IV) hydride complex [K-2{U(OSi((OBu)-Bu-t)(3))(3)(mu-O)(mu-H)(2)}], 2, which displays high reductive ...

2019

Reversible Dihydrogen Activation and Hydride Transfer by a Uranium Nitride Complex

Marinella Mazzanti, Farzaneh Fadaei Tirani, Marta Falcone, Lok Nga Poon

Cleavage of dihydrogen is an important step in the industrial and enzymatic transformation of N2 into ammonia. The reversible cleavage of dihydrogen was achieved under mild conditions (room temperature and 1 atmosphere of H2) by the molecular uranium nitri ...

Wiley-VCH Verlag GmbH2018

Four-electron Reduction and Functionalization of N₂ by a Uranium(III) Bridging Nitride

Marinella Mazzanti, Marta Falcone

N2 is a cheap and widely available but very unreactive molecule. Notably, the only industrial process for the conversion of dinitrogen is the Haber-Bosch process to form ammonia, but under very harsh conditions (high temperature and pressure). Here, we rev ...

2018

Nitrogen reduction and functionalization by a multimetallic uranium nitride complex

Rosario Scopelliti, Marinella Mazzanti, Lucile Sylvie Danielle Chatelain, Ivica Zivkovic, Marta Falcone

Molecular nitrogen (N-2) is cheap and widely available, but its unreactive nature is a challenge when attempting to functionalize it under mild conditions with other widely available substrates (such as carbon monoxide, CO) to produce value-added compounds ...

2017

CO Cleavage and CO2 Functionalization under Mild Conditions by a Multimetallic CsU2 Nitride Complex

Rosario Scopelliti, Marinella Mazzanti, Lucile Sylvie Danielle Chatelain, Marta Falcone

Novel efficient chemical processes involving cheap and widely accessible carbon dioxide or carbon monoxide under mild conditions for the production of valuable chemical products are highly desirable in the current energetic context. Uranium nitride materia ...

2017

Metathesis of a U(V) imido complex: a route to a terminal U(V) sulfide

Rosario Scopelliti, Marinella Mazzanti, Marta Falcone, Rory Patrick Kelly

Herein, we report the synthesis and characterisation of the first terminal uranium(V) sulfide and a related UV trithiocarbonate complex supported by sterically demanding tris(tert-butoxy)siloxide ligands. The reaction of the potassium-bound UV imido comple ...

2017