Concept

Chirality

Related publications (118)

Impact of Strain Effects on the Stability of Ising Walls in Ferroelectrics

Nava Setter, Alexander Tagantsev, Petr Yudin

The stability of Ising 180-degree domain walls with respect to appearance of chirality is analytically studied in tetragonal perovskite-type ferroelectrics taking into account electro-mechanical coupling. It is shown that the widely used approximation negl ...

Taylor & Francis2012

Catalytic Enantiospecific [3+2] Annulation of Aminocyclopropanes with Ketones

Jérôme Waser, Fides Benfatti, Florian Patrick Marie Daniel De la Barre De Nanteuil

The first enantiospecific [3+2] annulation of D-A amino-cyclopropanes with ketones is reported herein (see scheme; Phth = phthaloyl). The reaction is catalyzed by 5 mol % of tin(IV) chloride at -78 °C and gives aminotetra-hydrofurans bearing a C5-quaternar ...

2012

Structural basis for chirality and directional motility of Plasmodium sporozoites

Henning Paul-Julius Stahlberg

Plasmodium sporozoites can move at high speed for several tens of minutes, which is essential for the initial stage of a malaria infection. The crescent-shaped sporozoites move on 2D substrates preferably in the same direction on circular paths giving rais ...

Wiley-Blackwell2012

Stereoselectivity and electrostatics in charge-transfer Mn- and Cs-TCNQ(4) networks on Ag(100)

Klaus Kern, Andrea Floris, Sebastian Stepanow, Tzu-Chun Tseng, Nasiba Abdurakhmanova

Controlling supramolecular self-assembly is a fundamental step towards molecular nanofabrication, which involves a formidable reverse engineering problem. It is known that a variety of structures are efficiently obtained by assembling appropriate organic m ...

Nature Publishing Group2012

Optical stability of axially chiral push-pull-substituted buta-1,3dienes: Effect of a single methyl group on the C60 surface

Pablo Rivera Fuentes

A new spin on C60: Axially chiral, pushpull buta-1,3-diene chromophores conjugated to vicinally methylated fullerenes (see picture) have high barriers of rotation about their chiral axes. These high barriers allowed their optical resolution and the determi ...

2010

Enantiomerically Pure Alleno-Acetylenic Macrocycles: Synthesis, Solid-State Structures, Chiroptical Properties, and Electron Localization Function Analysis

Pablo Rivera Fuentes

New enantiomerically pure alleno-acetylenic macrocycles were prepd. by oxidative homocoupling of optically active 1,3-diethynylallenes. Enantiomer sepn. resulted from a combined strategy of synthesis and chiral HPLC techniques. Two other achiral stereoisom ...

2010

Chirality of Triangular Antiferromagnetic Clusters as a Qubit

Frédéric Mila

We show that the chirality of triangular antiferromagnetic clusters can be used as a qubit even if it is entirely decoupled from the total spin of the cluster. In particular, we estimate the orbital moment associated with the chirality, and we show that it ...

2010

Coverage-dependent self-assembly of rubrene molecules on noble metal surfaces observed by scanning tunneling microscopy

Wolf-Dieter Schneider, François Patthey, Marina Pivetta

Coverage-dependent self-assembly of rubrene molecules on different noble metal surfaces, Au(111) and Au(100), Ag(111) and Ag(100), is presented. On Au(111), the homochiral supramolecular assemblies evolve with increasing rubrene coverage from very small st ...

Wiley-Blackwell2010

Tertiary Chiral Domains Assembled by Achiral Metal-Organic Complexes on Cu(110)

Klaus Kern, Giovanni Costantini

We report on the formation of chiral domains self-assembled from terephthalic acid (TPA) and iron on a Cu(110) surface. Using scanning tunnelling microscopy, we observe that the supramolecular structures are organized on successive hierarchical levels. Chi ...

2010

Phononic properties of hexagonal chiral lattices

Alessandro Spadoni

The manuscript reports the outcome of investigations on the phononic properties of a chiral cellular structure. The considered geometry features in-plane hexagonal symmetry, whereby circular nodes are connected through six ligaments tangent to the nodes th ...

Elsevier2009

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