Are pi-pi Interactions in Ionic Liquids Related to Conductivities?

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Stereoselective synthesis of alkenes via base-metal-catalyzed addition reactions to alkynes and activation of hydrogen peroxide and carbon dioxide by iron complexes

Fedor Zhurkin

Alkene functionality can be found in the majority of natural products, drugs, catalysts and organic materials. Therefore, methods of C-C double bond formation constitute a cornerstone of organic synthesis. Selective formation of either (Z)- or (E)-isomer i ...

EPFL2017

Two-dimensional honeycomb network through sequence-controlled self-assembly of oligopeptides

Klaus Kern, Stephan Rauschenbach, Sabine Abb

The sequence of a peptide programs its self-assembly and hence the expression of specific properties through non-covalent interactions. A large variety of peptide nanostructures has been designed employing different aspects of these non-covalent interactio ...

Nature Publishing Group2016

Viruses at solid-water interfaces: A systematic assessment of interactions driving adsorption

Tamar Kohn, Anne Thérèse Sigstam, Meret Aeppli, Antonius Magdi Hakeem Armanious

Adsorption to solid-water interfaces is a major process governing the fate of waterborne viruses in natural and engineered systems. The relative contributions of different interaction forces to adsorption and their dependence on the physicochemical propert ...

Amer Chemical Soc2016

On-Surface Assembly and Reactions of Organic Molecules in Ultra-High Vacuum

Claudius Morchutt

This thesis comprises the study of two types of 2D materials, those stabilized by non-covalent and those by covalent interactions. They are synthesized and studied on well-defined metallic surfaces in ultra-high vacuum (UHV). The self-assembly of terephtha ...

EPFL2016

Characterization of Solid-Liquid Interfaces with High-Resolution Atomic Force Microscopy

Maria Ricci

Solid-liquid interfaces are ubiquitous. Despite the unquestioned relevance, many scientific research fields rely on simplified or macroscopic descriptions, discarding the molecular nature of the constituents. However, it is the specific molecular interacti ...

EPFL2015

Origin of the Spectral Shifts among the Early Intermediates of the Rhodopsin Photocycle

Bruno Araujo Cautiero Horta, Ursula Röthlisberger, Ivano Tavernelli, Marilisa Neri, Pablo Campomanes Ramos, Stefano Vanni

A combined strategy based on the computation of absorption energies, using the ZINDO/S semiempirical method, for a statistically relevant number of thermally sampled configurations extracted from QM/MM trajectories is used to establish a one-to-one corresp ...

2014

Highly Enantioselective Rhodium(I)-Catalyzed Activation of Enantiotopic Cyclobutanone C-C Bonds

Nicolai Cramer, Laetitia Marie Mélanie Souillart

The selective functionalization of carbon-carbon sigma bonds is a synthetic strategy that offers uncommon retrosynthetic disconnections. Despite progress in CC activation and its great importance, the development of asymmetric reactions lags behind. Rhodiu ...

Wiley-VCH Verlag GmbH2014

Simultaneous Visualization of Covalent and Non-Covalent Interactions Using Regions of Density Overlap

Anne-Clémence Corminboeuf, Piotr De Silva

We introduce a density-dependent bonding descriptor that enables simultaneous visualization of both covalent and noncovalent interactions. The proposed quantity is tailored to reveal the regions of space, where the total electron density results from a str ...

Amer Chemical Soc2014

How Strong Is Hydrogen Bonding in Ionic Liquids? Combined X-ray Crystallographic, Infrared/Raman Spectroscopic, and Density Functional Theory Study

Paul Joseph Dyson, Rosario Scopelliti, Gabor Laurenczy, Zhaofu Fei, Ning Yan, Emilia Paunescu

Hydrogen bonding in ionic liquids based on the 1-(2'-hydroxylethyl)-3-methylimidazolium cation (C(2)OHmim) and various anions (A) of differing H-bond acceptor strength, viz. hexafluorophosphate PF6, tetrafluoroborate BF4, bis-(trifluoro ...

American Chemical Society2013