Étudiant-chercheur étoile May 2014


Daniel Beaudoin, étudiant-chercheur étoile, FRQNT

Daniel Beaudoin

PhD student in Chemistry
Université de Montréal


Award-winning publication: Constructing monocrystalline covalent organic networks by polymerization

Published in: Nature chemistry, 5, 810-811, 2013
 

Abstract

"Chemists rely on modular construction to prepare molecular networks, but covalent organic materials had never been obtained as macroscopic crystals. Our study shows that such materials may be created through the reversible polymerization of suitably designed monomers. More specifically, we demonstrated that compounds with tetrahedrally-oriented nitroso groups spontaneously assemble into three-dimensional molecular networks. They are isolated as large single crystals that can be fully characterized by X-ray diffraction—a first for this type of material. In addition, the crystals that are produced are remarkably uniform and constituted of a small number of polymers of extremely high molecular weight."

Daniel Beaudoin's research establishes a link between polymer science and supramolecular chemistry by illustrating the ways in which ordered structures (covalent or not) can be built in a predictable manner. His findings open the door to clearly defined covalent molecular materials, eliminating any doubts on their fundamental structural characteristics. The approach could lead to new materials with properties sought by researchers and members of industry alike.