Concept
Solide moléculaire
Publications associées (86)
The molecular scale mechanism of deposition ice nucleation on silver iodide
Athanasios Nenes, Mária Lbadaoui-Darvas, André Welti
Heterogeneous ice nucleation is a ubiquitous process in the natural and built environment. Deposition ice nucleation, i.e. heterogeneous ice nucleation that - according to the traditional view - occurs in a subsaturated water vapor environment and in the a ...
Royal Soc Chemistry2024A data-driven interpretation of the stability of organic molecular crystals
Michele Ceriotti, Edgar Albert Engel, Maria Pakhnova
Due to the subtle balance of intermolecular interactions that govern structure-property relations, predicting the stability of crystal structures formed from molecular building blocks is a highly non-trivial scientific problem. A particularly active and fr ...
ROYAL SOC CHEMISTRY2023Crack tip kinematics reveal the process zone structure in brittle fracture
John Martin Kolinski, Chenzhuo Li, Xinyue Wei
When brittle hydrogels fail, several mechanisms conspire to alter the state of stress near the tip of a crack, and it is challenging to identify which mechanism is dominant. In the fracture of brittle solids, a sufficient far-field stress results in the co ...
PERGAMON-ELSEVIER SCIENCE LTD2023Direct Observation of the Phase Transition in C60 Fullerene
In the third study, the order-disorder phase transition of single-crystal C60 is studied using time-resolved electron microscopy. Solid C60 undergoes a first-order phase transition upon heating to 260 K. This is a structural transition from the low-tempera ...
EPFL Infoscience2023Resolving the charging paradox of neat oil droplets in water
The thesis covers the series of questions regarding the molecular structure and charge of oil nanodroplets in water. This work proposes a mechanism responsible for the stabilization of oil nanodroplets in water, which does not involve OH- adsorption. First ...
EPFL2022New methods for structure determination and speciation by NMR crystallography
NMR crystallography has been around for half a century, but with the advent of NMR crystal structure determination protocols in the last decade it has shown perspectives that were not seen before. Amalgamation of NMR and crystal structure determination has ...
EPFL2022An in-situ 3D micro-XRD investigation of water uptake by alkali-silica-reaction (ASR) product
The ASR products in concrete have various chemical compositions. It is yet unclear whether and how these products develop micro-expansion upon moisture ingress. This paper presents a 3D in-situ observation of the crystallography and volume change of an ASR ...
PERGAMON-ELSEVIER SCIENCE LTD2021Is a Single Conformer Sufficient to Describe the Reorganization Energy of Amorphous Organic Transport Materials?
Iwona Swiderska, Kun-Han Lin, Jacob Terence Blaskovits, Raimon Fabregat I De Aguilar-Amat, Hélène Wu
The reorganization energy (lambda), which quantifies the structural rearrangement of a molecule when accommodating a charge, is a key parameter in the evaluation of charge mobility in molecular solids. However, it is unclear how lambda is influenced by con ...
AMER CHEMICAL SOC2021Explosive fragmentation of Prince Rupert's drops leads to well-defined fragment sizes
Anyone who has ever broken a dish or a glass knows that the resulting fragments range from roughly the size of the object all the way down to indiscernibly small pieces: typical fragment size distributions of broken brittle materials follow a power law, an ...
NATURE RESEARCH2021