Publications de Zacharias Immanuel Grote

Efficient and Rapid Synthesis of Chlorido-Bridged Half-Sandwich Complexes of Ruthenium, Rhodium, and Iridium by Microwave Heating

Kay Severin, Rosario Scopelliti, Zacharias Immanuel Grote, Julie Risse, Justus Tönnemann

The dinuclear complexes [(p-cymene)RuCl2]2 and [(cyclopentadienyl)MCl2]2 (M = Ru, Rh, Ir) are important starting materials in organometallic chemistry. The standard synthesis of these complexes involves heating of an alcoholic solution of RuIII, RhIII, or ...

Wiley-Blackwell2013

Organometallic complexes that interconvert between trimeric and monomeric structures as a function of pH and their effect on human cancer and fibroblast cells

Kay Severin, Rosario Scopelliti, Paul Joseph Dyson, Zacharias Immanuel Grote, Wee Han Ang

Organometallic half-sandwich complexes based on ruthenium with aminomethyl-substituted 3-hydroxy-2-pyridone ligands exist in aqueous solution as monomeric O,O′-chelate complexes or trimeric metallamacrocycles depending upon the pH. We hypothesized that adm ...

2009

Ruthenium-based metallacrown complexes for the selective detection of lithium ions in water and in serum by fluorescence spectroscopy

Kay Severin, Sébastien Rochat, Zacharias Immanuel Grote

Fluorescent dihydroxypyridine ligands were prepared by attaching pyrene-, dansyl-, and methoxycoumarin-fluorophores via dimethyleneamine linkers. The reaction of these ligands with [(p-cymene)RuCl2]2 or [(C6H5CH2NMe2H)RuCl2]2Cl2 resulted in the formation o ...

2009

A Self-Assembled Receptor for the Recognition of Phosphate and Acetate in Neutral Aqueous Solution

Kay Severin, Rosario Scopelliti, Euro Solari, Zacharias Immanuel Grote

Royal Society of Chemistry2007

Lithium Isotope Separation with 12-Metallacrown-3 Complexes

Kay Severin, Rosario Scopelliti, Zacharias Immanuel Grote

2007

Controlled Formation of Mixed-Metal Macrocycles Using Dynamic Exchange Processes and Steric Constraints

Kay Severin, Rosario Scopelliti, Zacharias Immanuel Grote

The exchange reaction of the trinuclear macrocycles [(C6H3iPr3)Ru(C5H3NO2)]3 (AAA) and [(cymene)Ru(C5H3NO2)]3 (BBB) has been studied. It was found that the equilibration proceeds in two steps and that the final mixture is completely dominated by the mixed- ...

2007

Supramolecular chemistry of 12-Metallacrown-3 complexes

Zacharias Immanuel Grote

12-Metallacrown-3 complexes were formed by self-assembly of organometallic half-sandwich complexes [(π-ligand)MCl2]2 (M = Ru, Rh, Ir) and 3-hydroxy-2-pyridone ligands in the presence of Cs2CO3 as base. Upon mixing of different macrocycles, reversible metal ...

EPFL2006

Bridged Dihydroxypyridine Ligands for the Synthesis of Expanded Helicates

Kay Severin, Simone Bonazzi, Rosario Scopelliti, Zacharias Immanuel Grote

2006