Search Results - "Schweizer, W."

A two-dimensional polymer prepared by organic synthesis by Kissel, Patrick, Erni, Rolf, Schweizer, W. Bernd, Rossell, Marta D., King, Benjamin T., Bauer, Thomas, Götzinger, Stephan, Schlüter, A. Dieter, Sakamoto, Junji

“…Synthetic polymers are widely used materials, as attested by a production of more than 200 millions of tons per year, and are typically composed of linear…”
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Direct Photolysis of Human Metabolites of the Antibiotic Sulfamethoxazole: Evidence for Abiotic Back-Transformation by Bonvin, Florence, Omlin, Julien, Rutler, Rebecca, Schweizer, W. Bernd, Alaimo, Peter J, Strathmann, Timothy J, McNeill, Kristopher, Kohn, Tamar

“…The presence of potentially persistent and bioactive human metabolites in surface waters gives rise to concern; yet little is known to date about the…”
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Fluorine-Iminium Ion Gauche Effect: Proof of Principle and Application to Asymmetric Organocatalysis by Sparr, Christof, Schweizer, W. Bernd, Senn, Hans Martin, Gilmour, Ryan

“…The gauche effect that is induced upon reversible formation of an iminium ion (see structure: green F, blue N) provides a powerful method for the…”
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Thermally-induced transformation of hexabromocyclo dodecanes and isobutoxypenta bromocyclododecanes in flame-proofed polystyrene materials by Heeb, Norbert V., Graf, Heidi, Bernd Schweizer, W., Lienemann, P.

“…Polystyrenes (PS) are produced in quantities exceeding 10 Mt y −1. They are used for insulation and packaging materials, often in flame-proofed forms with…”
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Structures and Properties of Molecular Torsion Balances to Decipher the Nature of Substituent Effects on the Aromatic Edge-to-Face Interaction by Gardarsson, Haraldur, Schweizer, W. Bernd, Trapp, Nils, Diederich, François

“…Various recent computational studies initiated this systematic re‐investigation of substituent effects on aromatic edge‐to‐face interactions. Five series of…”
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Structural, Optical, and Electrochemical Properties of Three-Dimensional Push–Pull Corannulenes by Wu, Yi-Lin, Stuparu, Mihaiela C, Boudon, Corinne, Gisselbrecht, Jean-Paul, Schweizer, W. Bernd, Baldridge, Kim K, Siegel, Jay S, Diederich, François

“…Electrochemically active corannulene derivatives with various numbers of electron-donating 4-(N,N-dimethylamino)­phenylethynyl (1–4) or electron-withdrawing…”
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Property Tuning in Charge-Transfer Chromophores by Systematic Modulation of the Spacer between Donor and Acceptor by Bureš, Filip, Schweizer, W. Bernd, May, Joshua C., Boudon, Corinne, Gisselbrecht, Jean-Paul, Gross, Maurice, Biaggio, Ivan, Diederich, François

“…A series of donor–acceptor chromophores was prepared in which the spacer separating 4‐dimethylanilino (DMA) donor and C(CN)2 acceptor moieties is…”
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Origin of Intense Intramolecular Charge‐Transfer Interactions in Nonplanar Push–Pull Chromophores by Kato, Shin‐ichiro, Kivala, Milan, Schweizer, W. Bernd, Boudon, Corinne, Gisselbrecht, Jean‐Paul, Diederich, François

“…Nonplanar push–pull chromophores with tetrathiafulvalene and ferrocene donors (see picture) were prepared by formal [2+2] cycloadditions between electron‐rich…”
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C60 Pyrrolidine Bis-carboxylic Acid Derivative as a Versatile Precursor for Biocompatible Fullerenes by Aroua, Safwan, Schweizer, W. Bernd, Yamakoshi, Yoko

“…A C60 Prato derivative with bis- t Bu ester was prepared as a stable and convenient scaffold for the development of fullerene derivatives such as water-soluble…”
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Spirocyclic Oxetanes: Synthesis and Properties by Wuitschik, Georg, Rogers-Evans, Mark, Buckl, Andreas, Bernasconi, Maurizio, Märki, Moritz, Godel, Thierry, Fischer, Holger, Wagner, Björn, Parrilla, Isabelle, Schuler, Franz, Schneider, Josef, Alker, André, Schweizer, W. Bernd, Müller, Klaus, Carreira, Erick M.

“…Wormholes through chemical space: Spirocyclic oxetanes are described as analogues of morpholine and also as topological siblings of their carbonyl…”
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The Crystal Structure of D-Ribose-At Last by Šišak, Dubravka, McCusker, Lynne B., Zandomeneghi, Giorgia, Meier, Beat H., Bläser, Dieter, Boese, Roland, Schweizer, W. Bernd, Gilmour, Ryan, Dunitz, Jack D.

“…Better late than never! The β‐furanose form of D‐ribose, present in countless biomolecules, does not occur in the crystalline compound. X‐ray diffraction and…”
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Fluorinated Organocatalysts for the Enantioselective Epoxidation of Enals: Molecular Preorganisation by the Fluorine-Iminium Ion Gauche Effect by Tanzer, Eva-Maria, Zimmer, Lucie E., Schweizer, W. Bernd, Gilmour, Ryan

“…The fluorine‐iminium ion gauche effect is triggered upon union of a secondary β‐fluoroamine and an α,β‐unsaturated aldehyde, providing a useful strategy for…”
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Stereochemistry of LinB-catalyzed biotransformation of δ-HBCD to 1R,2R,5S,6R,9R,10S-pentabromocyclododecanol by Heeb, Norbert V., Zindel, Daniel, Graf, Heidi, Azara, Valeria, Bernd Schweizer, W., Geueke, Birgit, Kohler, Hans-Peter E., Lienemann, Peter

“…► The bacterial dehalogenase LinB converts HBCDs like HCHs. ► Mono- and dihydroxylated products are formed during HBCD biotransformations. ► XRD-analysis…”
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Redox-Switchable Resorcin[4]arene Cavitands: Molecular Grippers by Pochorovski, Igor, Ebert, Marc-Olivier, Gisselbrecht, Jean-Paul, Boudon, Corinne, Schweizer, W. Bernd, Diederich, Francois

“…Diquinone-based resorcin[4]arene cavitands that open to a kite and close to a vase form upon changing their redox state, thereby releasing and binding guests,…”
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Regio- and stereoselective isomerization of hexabromocyclododecanes (HBCDs): Kinetics and mechanism of γ- to α-HBCD isomerization by Heeb, Norbert V., Bernd Schweizer, W., Mattrel, Peter, Haag, Regula, Gerecke, Andreas C., Schmid, Peter, Zennegg, Markus, Vonmont, Heinz

“…Hexabromocyclododecanes (HBCDs) are high production volume chemicals (>20 000 t y −1) used as flame retardants for plastics and textiles. Lately, we reported…”
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Synthesis and Optoelectronic Properties of Janus-Dendrimer-Type Multivalent Donor–Acceptor Systems by Dengiz, Cagatay, Breiten, Benjamin, Gisselbrecht, Jean-Paul, Boudon, Corinne, Trapp, Nils, Schweizer, W. Bernd, Diederich, François

“…A convergent, multistep protocol was employed for the synthesis of a Janus-type multivalent donor–acceptor system. The synthetic approach is based on a…”
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Perfluorophenyl–Phenyl Interactions in the Crystallization and Topochemical Polymerization of Triacetylene Monomers by Xu, Rui, Schweizer, W. Bernd, Frauenrath, Holger

“…A series of symmetrically and unsymmetrically substituted octa‐2,4,6‐triyne‐1,8‐diol derivatives with benzoyl, 4‐dodecyloxybenzoyl, as well as perfluorobenzoyl…”
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Designing Fluorinated Cinchona Alkaloids for Enantioselective Catalysis: Controlling Internal Rotation by a Fluorine-Ammonium Ion gauche Effect (φNCCF) by Tanzer, Eva-Maria, Schweizer, W. Bernd, Ebert, Marc-Olivier, Gilmour, Ryan

“…The C9 position of cinchona alkaloids functions as a molecular hinge, with internal rotations around the C8C9 (τ1) and C9C4′ (τ2) bonds giving rise to four…”
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Mechanistic Investigation of the Dipolar [2+2] Cycloaddition-Cycloreversion Reaction between 4-(N,N-Dimethylamino)phenylacetylene and Arylated 1,1-Dicyanovinyl Derivatives To Form Intramolecular Charge-Transfer Chromophores by Wu, Yi-Lin, Jarowski, Peter D., Schweizer, W. Bernd, Diederich, François

“…The kinetics and mechanism of the formal [2+2] cycloaddition–cycloreversion reaction between 4‐(N,N‐dimethylamino)phenylacetylene (1) and para‐substituted…”
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Molecular Torsion Balances: Evidence for Favorable Orthogonal Dipolar Interactions Between Organic Fluorine and Amide Groups by Fischer, Felix R, Schweizer, W. Bernd, Diederich, François

“…Finding the right balance: An indole‐extended molecular torsion balance has the geometry for measuring a truly orthogonal noncovalent interaction between a CF…”
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