Search Results - "Heinz, Ernst"

Molecular chirality at surfaces by Ernst, Karl-Heinz

“…With the adsorption of larger molecules being increasingly tackled by surface scientists, the aspect of chirality often plays a role. This paper gives a…”
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Helicenes on Surfaces: Stereospecific On‐Surface Chemistry, Single Enantiomorphism, and Electron Spin Selectivity by Ernst, Karl‐Heinz

“…ABSTRACT Helicenes represent an important class of chiral organic material with promising optoelectronic properties. Hence, functionalization of surfaces with…”
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Spin‐Selective Electron Transport Through Single Chiral Molecules by Safari, Mohammad Reza, Matthes, Frank, Schneider, Claus M., Ernst, Karl‐Heinz, Bürgler, Daniel E.

“…The interplay between chirality and magnetism is a source of fascination among scientists for over a century. In recent years, chirality‐induced spin…”
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Enantioselective Adsorption on Magnetic Surfaces by Safari, Mohammad Reza, Matthes, Frank, Caciuc, Vasile, Atodiresei, Nicolae, Schneider, Claus M., Ernst, Karl‐Heinz, Bürgler, Daniel E.

“…From the beginning of molecular theory, the interplay of chirality and magnetism has intrigued scientists. There is still the question if enantiospecific…”
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Disappearing Enantiomorphs: Single Handedness in Racemate Crystals by Parschau, Manfred, Ernst, Karl-Heinz

“…Although crystallization is the most important method for the separation of enantiomers of chiral molecules in the chemical industry, the chiral recognition…”
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Unbalanced 2D Chiral Crystallization of Pentahelicene Propellers and Their Planarization into Nanographenes by Voigt, Jan, Roy, Myriam, Baljozović, Miloš, Wäckerlin, Christian, Coquerel, Yoann, Gingras, Marc, Ernst, Karl‐Heinz

“…The chiral self‐assembly of trispentahelicene propellers on a gold surface has been investigated in ultrahigh vacuum by means of scanning tunneling microscopy…”
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Highly Stereospecific On‐Surface Dimerization into Bishelicenes: Topochemical Ullmann Coupling of Bromohelicene on Au(111) by Voigt, Jan, Martin, Kévin, Neziri, Egzona, Baljozović, Miloš, Wäckerlin, Christian, Avarvari, Narcis, Ernst, Karl‐Heinz

“…The on‐surface dimerization into bis(hexahelicene) on a gold(111) surface has been studied by means of scanning tunneling microscopy and time‐of‐flight…”
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Switching the on‐surface orientation of oxygen‐functionalized helicene by Voigt, Jan, Hasan, Mohammed, Wäckerlin, Christian, Karnik, Anil V., Ernst, Karl‐Heinz

“…Helicenes represent an important class of chiral organic material with promising optoelectronic properties. Hence, functionalization of surfaces with helicenes…”
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Double layer crystallization of heptahelicene on noble metal surfaces by Seibel, Johannes, Parschau, Manfred, Ernst, Karl‐Heinz

“…Resolution of enantiomers of chiral compounds via crystallization is the dominant method in chemical industry, but chiral recognition at the molecular level…”
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Stereospecific on‐Surface Cyclodehydrogenation of Bishelicenes: Preservation of Handedness from Helical to Planar Chirality by Irziqat, Bahaaeddin, Cebrat, Aleksandra, Baljozović, Miloš, Martin, Kévin, Parschau, Manfred, Avarvari, Narcis, Ernst, Karl‐Heinz

“…Flattening helices while keeping the handedness: On‐surface cyclodehydrogenation of bishelicene enantiomers leads stereospecifically to (M,M) and (P,P) chiral…”
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From Homochiral Clusters to Racemate Crystals: Viable Nuclei in 2D Chiral Crystallization by Seibel, Johannes, Parschau, Manfred, Ernst, Karl-Heinz

“…The quest for enantiopure compounds raises the question of which factors favor conglomerate crystallization over racemate crystallization. Studying nucleation…”
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Chiral Autocatalysis and Mirror Symmetry Breaking by Gellman, Andrew J., Ernst, Karl-Heinz

“…Highly enantioselective production of chiral compounds by chiral catalysis is one of the most challenging forms of catalytic selectivity. In this perspective,…”
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Stereoselective On‐Surface Cyclodehydrofluorization of a Tetraphenylporphyrin and Homochiral Self‐Assembly by Chen, Hui, Tao, Lei, Wang, Dongfei, Wu, Zhuo‐Yan, Zhang, Jun‐Long, Gao, Song, Xiao, Wende, Du, Shixuan, Ernst, Karl‐Heinz, Gao, Hong‐Jun

“…The thermally induced cyclodehydrofluorization of iron tetrakis(pentafluorophenyl)porphyrin proceeded highly stereoselectively to give a prochiral product on a…”
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On‐Surface Synthesis of Helicene Oligomers by Pinar Solé, Andrés, Klívar, Jiří, Šámal, Michal, Stará, Irena G., Starý, Ivo, Mendieta‐Moreno, Jesús I., Ernst, Karl‐Heinz, Jelínek, Pavel, Stetsovych, Oleksandr

“…We report on‐surface synthesis of heterochiral 1D heptahelicene oligomers after deposition of a racemic heptahelicene monomer on an Au(111) surface followed by…”
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XXII. Symposium on Atomic, Cluster and Surface Physics (SASP) by Ernst, Karl-Heinz

“…From Sunday February 2nd, 2020 until the following Friday, 75 scientists from all over the world gathered in Hotel Laudinella in St. Moritz to discuss their…”
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Amplification of chirality in two-dimensional enantiomorphous lattices by Fasel, Roman, Parschau, Manfred, Ernst, Karl-Heinz

“…The concept of chirality dates back to 1848, when Pasteur manually separated left-handed from right-handed sodium ammonium tartrate crystals. Crystallization…”
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Two-Dimensional Crystallization of Enantiopure and Racemic Heptahelicene on Ag(111) and Au(111) by Seibel, Johannes, Parschau, Manfred, Ernst, Karl-Heinz

“…Insight into recognition among helical molecules is highly relevant for understanding chiral separation or biomolecular activity. The two-dimensional…”
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Controlling On‐Surface Photoactivity: The Impact of π‐Conjugation in Anhydride‐Functionalized Molecules on a Semiconductor Surface by Frezza, Federico, Sánchez‐Grande, Ana, Canola, Sofia, Lamancová, Anna, Mutombo, Pingo, Chen, Qifan, Wäckerlin, Christian, Ernst, Karl‐Heinz, Muntwiler, Matthias, Zema, Nicola, Di Giovannantonio, Marco, Nachtigallová, Dana, Jelínek, Pavel

“…On‐surface synthesis has become a prominent method for growing low‐dimensional carbon‐based nanomaterials on metal surfaces. However, the necessity of…”
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Transition from Homochiral Clusters to Racemate Monolayers during 2D Crystallization of Trioxa[11]helicene on Ag(100) by Irziqat, Bahaaeddin, Berger, Jan, Mendieta‐Moreno, Jesús I., Sundar, Mothuku Shyam, Bedekar, Ashutosh V., Ernst, Karl‐Heinz

“…The phenomenon of chiral crystallization into homochiral crystals is known for more than 170 years, yet it is still poorly understood. Studying crystallization…”
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Fivefold Symmetry and 2D Crystallization: Self‐Assembly of the Buckybowl Pentaindenocorannulene on a Cu(100) Surface by Mairena, Anaïs, Zoppi, Laura, Lampart, Samuel, Baldridge, Kim K., Siegel, Jay S., Ernst, Karl‐Heinz

“…The modification of metal electrode surfaces with functional organic molecules is an important part of organic electronics. The interaction of the…”
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