Intitulé du poste : Substrate-induced crystallization of organic compounds – "2Dto3D" project
Ville : Leuven, Bruxelles
Laboratoire/Institut : Université Libre de Bruxelles; University of Leuven
Description du poste : Université Libre de Bruxelles - Free University of Brussels - (ULB) and KU Leuven – University of Leuven are major academic institutions with international recognition for scientific achievements.

Geerts group works on crystal engineering and crystallization of molecular materials in specific conditions to control thin film structure and ultimately optoelectronic properties. See http://www.ulb.ac.be/sciences/chimpoly.

De Feyter group works on nano(bio)chemistry on surfaces, using scanning probe microscopy to unravel the structure and function of multi-(bio)molecular assemblies at the liquid-solid interface. http://www.defeytergroup.org/.

Summary of "2Dto3D" research project: The occurrence of two or more crystal structures for a given molecule, a phenomenon called polymorphism, is ubiquitous to various classes of synthetic and natural compounds. Examples of polymorphism are known in numerous fields, such as food, explosives, pigments, semiconductors, fertilizers, and pharmaceutical drugs. Different crystal structures, so-called polymorphs, of the same compound exhibit sometimes very different physical properties, chemical reactivity, and biological functions. Understanding and controlling polymorphism is therefore very important. Simple questions, such as "How many polymorphs does a given compound have?" or "What drives polymorph selection?" remain unanswered yet. In this scientific context, scientists have started to explore the occurrence of substrate-induced polymorphism, i.e. the formation of polymorphs that exist only near solid substrates. In particular, 2Dto3D has the ambition to elucidate how positional and orientational order of molecules propagate from the substrate to the upper crystal layers. In this manner, 2Dto3D will gain a fundamental understanding of polymorphism at the interface with solid substrates. For a recent reviews see: "Substrate-Induced and Thin-Film Phases: Polymorphism of Organic Materials on Surfaces" A. Jones et al. Adv. Funct. Mater. 2016, 26, 2233 and gMolecular and Supramolecular Networks on Surfaces: From Two]Dimensional Crystal Engineering to Reactivityh J. A. A. W. Elemans et al. Angew. Chem. Int. Ed. 2009, 48, 7298.

We are looking for a talented, highly motivated young chemist with a solid background in physical supramolecular chemistry of self-assembled systems. The candidate must have a sound knowledge of thermodynamics, kinetics, crystallization and characterization methods. He/she must be open-minded, hardworking, rigorous, and have strong laboratory skills. He/she must be fluent in English. Only applicants who have obtained good grades will be considered.

The duration of a PhD thesis is four years. The selected applicant will spend the first two years in the Geerts group. Then, he/she will work in the De Feyter group during the remaining two years. The candidate is expected to defend a high-level PhD thesis that will be jointly awarded by ULB and KUL, within four years.
He or she will get a monthly fellowship of around €1900, after tax.

To apply, candidates should send their curriculum vitae, a motivation letter, a list of publications (if any), and the name and email address of three academic referees to Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser..
Durée du contrat : 3 years
Date de prise de fonction : as soon as possible
Personne à contacter : Yves Geerts
Téléphone :  
Email : Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.