Publications by Giacomo Cecot | EPFL Graph Search

Discrete Heterotrimetallic Assemblies Based on Rod‐Shaped FeII‐Metalloligands and a ZnII‐Porphyrin/RuII‐Metallacycle

Kay Severin, Giacomo Cecot, Erica Giraldi

An efficient strategy for the preparation of heterometallic discrete porphyrin assemblies, tuned both in dimensions and number of metal centers, is described. Five rod‐shaped di‐pyridyl FeII‐metalloligands, with varied length (1.5 – 3.2 nm), lateral substi ...

Wiley2025

Synthesis and Characterization of Coordination Cages Based on Clathrochelate Metalloligands

Giacomo Cecot

The work presented in this thesis focused on the synthesis and characterization of new metalloligands based on iron(II) clathrochelate complexes. Clathrochelates can be functionalized peripherally with donor groups capable of coordinating metal ions. The s ...

EPFL2019

Cages vs. Prisms: Controlling the Formation of Metallosupramolecular Architectures with Ligand Side-Chains

Kay Severin, Rosario Scopelliti, Farzaneh Fadaei Tirani, Giacomo Cecot, Andrea Luca Ramorini, Ophélie Marie Planes, Martin Tim Doll

Metallosupramolecular assemblies of the general formula M2nLn can adopt prismatic or cage‐like structures. The factors controlling the aggregation number n and the geometry of the final assembly are still not fully understood. Here, we describe the synthes ...

2019

Reversible disassembly of metallasupramolecular structures mediated by a metastable-state photoacid

Kay Severin, Giacomo Cecot, Suzanne Maria Jansze

The addition of a metastable-state photoacid to solutions containing metal–ligand assemblies renders the systems light responsive. Upon irradiation, proton transfer from the photoacid to the ligand is observed, resulting in disassembly of the metallasupram ...

2018

The Intricate Structural Chemistry of MII2nLn-Type Assemblies

Kay Severin, Rosario Scopelliti, Euro Solari, Philip Pattison, Mathieu Jérémie Marmier, Farzaneh Fadaei Tirani, Giacomo Cecot

The reaction of cis-blocked, square-planar MII complexes with tetratopic N-donor ligands is known to give metallasupramolecular assemblies of the formula M2nLn. These assemblies typically adopt barrel-like structures, with the ligands paneling the sides of ...

2017

Fixation of nitrous oxide by mesoionic and carbanionic N-heterocyclic carbenes

Kay Severin, Rosario Scopelliti, Euro Solari, Léonard Yannick Maurice Eymann, Farzaneh Fadaei Tirani, Giacomo Cecot

A ditopic carbanionic N-heterocyclic carbene was found to react with the inert gas nitrous oxide, resulting in a stable covalent adduct with two intact N2O groups attached to the heterocycle. Mesoionic N-heterocyclic carbenes derived from C2-arylated 1,3-b ...

Royal Society of Chemistry2017

Surface functionalization of dinuclear clathrochelates via Pd-catalyzed cross-coupling reactions: facile synthesis of polypyridyl metalloligands

Kay Severin, Rosario Scopelliti, Euro Solari, Philip Pattison, Mathieu Jérémie Marmier, Giacomo Cecot

Dinuclear clathrochelate complexes are easily accessible by reaction of zinc(II) triflate or cobalt(II) nitrate with arylboronic acids and phenoldioximes. The utilization of brominated arylboronic acids and/or brominated phenoldioximes allows preparing cla ...

2016

The Ligand Aspect Ratio as a Decisive Factor for the Self-Assembly of Coordination Cages

Kay Severin, Rosario Scopelliti, Euro Solari, Philip Pattison, Konstantin Zhurov, Matthew David Wise, Alba Finelli, Giacomo Cecot, Suzanne Maria Jansze

It is possible to control the geometry and the composition of metallasupramolecular assemblies via the aspect ratio of their ligands. This point is demonstrated for a series of iron- and palladium-based coordination cages. Functionalized clathrochelate com ...

2016

Dinuclear clathrochelate complexes with pendent cyano groups as metalloligands

Kay Severin, Rosario Scopelliti, Euro Solari, Bálint Náfrádi, Philip Pattison, Henrik Moodysson Rønnow, Ivica Zivkovic, Mathieu Jérémie Marmier, Giacomo Cecot, José Luis Bila

Dinuclear clathrochelate complexes with two, three, four, or five cyano groups in the ligand periphery were prepared following two distinct synthetic strategies: (a) zinc(II)- or cobalt(II)-templated polycondensation reactions of CN-functionalized arylboro ...

2016

Large heterometallic coordination cages with gyrobifastigium-like geometry

Kay Severin, Rosario Scopelliti, Euro Solari, Stéphanie Prior, Bassam Alameddine, Farzaneh Fadaei Tirani, Giacomo Cecot

Large coordination cages with unusual gyrobifastigium-like geometry were obtained by combining cis-blocked PtII or PdII complexes with clathrochelate-based metalloligands ...

Royal Society of Chemistry2016