Promotor: Prof.dr. M.T.M. Koper, Co-Promotor: F. Calle-Vallejo

Sustainable energy from wind and solar is most readily available near the sea.

In this dissertation, the synthesis and characterization of a series of iron complexes based on different ligand platforms are described.

Human civilization consumes a huge amount of fossil fuels, which has resulted in an atmospheric CO2 level which has not been higher in over 800 millennia.

Before the large scale use of renewable energy sources can be implemented in our society, the storage of electrical energy needs to be tackled. Storage the energy as hydrogen via the reduction of protons is a good option.

Heterogeneous catalysis is essential to many industrial applications. These catalysts are often comprised of supported nanoparticles, which contain various different surface sites.

In this dissertation iron-based homogeneous catalysts were synthesized, characterized and investigated for water oxidation activity.

Promotor: M.T.M. Koper, Co-promotors: A.I. Yanson, L.B.F. Juurlink

This thesis describes the use of a combined approach of computational and experimental techniques to gain novel insights to understand the glycosylation reaction and its reactive intermediates.

Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink

The glycosylation reaction is a pivotal reaction in creating new and complex oligosaccharides.

Promotor: T.J. Aartsma, Co-promotor: R.N. Frese

Promotor: Prof.dr. E. Bouwman

The research presented in this thesis makes use of small molecules (as H2 , D2 and O2 ) on well-defined single crystal surfaces (flat Pt(111), flat Cu(211) and curved Pt(111)) to elucidate the role of surface structure and degrees of freedom in the reactant in specific surface reactions.

Promotor: A. Doelman, Co-promotor: J.D.M. Rademacher

A difficulty of studies on chemical kinetics are the reaction time scales and detection of their intermediates.

Planets are formed in disks of gas and dust around young stars.

Promotor: Arjen Doelman, Co-promotor: Vivi Rottschäfer

Hetterscheid

The growing demand of energy indicates that global energy resources in the form of fossil fuels will not be sufficient in the future. In order to solve potential future energy problems development of a sustainable hydrogen economy is highly desirable.

Promotor: Prof.dr. E. Bouwman, Co-promotor: S. Bonnet

Promotores: G.W. Canters, T.J. Aartsma

Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.

Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L.B.F.M. Waters (UvA), Prof.dr. C. Dominik (UvA)

The soil-dwelling, filamentous bacteria of the genus Streptomyces are renowned for their production of useful secondary metabolites including antibiotics. The work described in this thesis provides new insights on the role and regulation of antibiotic production and resistance in these bacteria.

Promotor: S.M. Verduyn Lunel, Co-promotor: O. van Gaans

In this thesis chemical and physical processes in the ice mantles on interstellar dust grains are studied.

Promotores: Prof.dr. M. Franx, Prof.dr. P.G. van Dokkum (Yale University)

Several techniques are explored for going beyond the born-oppenheimer static surface model for molecule-surface reactions.

Promotor: Prof.dr. G.J. Kroes

Promotor: Prof.dr. M. Schilthuizen

Promotor: Prof.dr. H.J.A. Rottgering

Wiskunde en Natuurwetenschappen, Leids Instituut voor Chemisch Onderzoek (LIC)

Promotor: Prof.dr. H.V.J. Linnartz, Co-Promotores: S. Ioppolo, H.M. Cuppen

Kieltyka

Catalysis is of extreme relevance in the production of everyday materials and plays a central role in many aspects of our life.

Promotor: S.M. Verduyn Lunel, Co-promotor: O.W. van Gaans

To gain more insight into the evolutionary development of orchid flowers and fruits, the orchid species Erycina pusilla was studied. The evolutionary origin of the median petaloid sepal, the callus on the labellum, and the stelidia was studied.

Promotor: M.T.M. Koper, Co-promotor: L. Juurlink

Promotor: H.J.A. Rottgering, Co-Promotor: R.J. van Weeren

This thesis investigates the structural evolution and assembly of galaxies since the first few billions years after the big bang.

Pulsars were first discovered in 1967 and since then the population has grown and expanded over several wavelengths.

Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.

Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)

Promotor: Prof.dr. E.F. Smets

Promotie

Promotor: Prof.dr. P.G.L Klinkhamer, Co-promotor: K. Vrieling

Promotie

Advanced sensing techniques require graphene with high quality and well-controlled surface chemistry.