Search Results - "Trapp, Nils"
-
1
Halogen Bonding Molecular Capsules
Published in Angewandte Chemie International Edition (12-10-2015)“…Molecular capsules based solely on the interaction of halogen bonding (XB) are presented along with their host–guest binding properties in solution. The first…”
Get full text
Journal Article -
2
A Crystal Structure of an Oligoproline PPII-Helix, at Last
Published in Journal of the American Chemical Society (12-11-2014)“…The first crystal structure of an oligoproline adopting an all-trans polyproline II (PPII) helix is presented. The high-resolution structure provides detailed…”
Get full text
Journal Article -
3
Supramolecular Capsules: Strong versus Weak Chalcogen Bonding
Published in Angewandte Chemie International Edition (21-12-2018)“…Resorcin[4]arene cavitands containing either 2,1,3‐benzotelluradiazole or 2,1,3‐benzothiadiazole motifs were dimerized to supramolecular capsules by chalcogen…”
Get full text
Journal Article -
4
Chalcogen Bonding “2S–2N Squares” versus Competing Interactions: Exploring the Recognition Properties of Sulfur
Published in Chemistry : a European journal (02-01-2019)“…Chalcogen bonding (CB) is the focus of increased attention for its applications in medicinal chemistry, materials science, and crystal engineering. However,…”
Get full text
Journal Article -
5
Alleno-Acetylenic Cage (AAC) Receptors: Chiroptical Switching and Enantioselective Complexation of trans-1,2-Dimethylcyclohexane in a Diaxial Conformation
Published in Angewandte Chemie International Edition (07-11-2016)“…Four enantiopure 1,3‐diethynylallenes (DEAs) with OH termini were attached to the rim of a resorcin[4]arene cavitand. The system undergoes conformational…”
Get full text
Journal Article -
6
Halogen‐Bonded Supramolecular Capsules in the Solid State, in Solution, and in the Gas Phase
Published in Angewandte Chemie International Edition (19-01-2017)“…Supramolecular capsules were assembled by neutral halogen bonding (XB) and studied in the solid state, in solution, and in the gas phase. The geometry of the…”
Get full text
Journal Article -
7
Iterative Assembly of Polycyclic Saturated Heterocycles from Monomeric Building Blocks
Published in Journal of the American Chemical Society (03-04-2019)“…Polycyclic saturated heterocycles with predictable shapes and structures are assembled by iterative couplings of bifunctional stannyl amine protocol (SnAP)…”
Get full text
Journal Article -
8
Helicene Quinones: Redox-Triggered Chiroptical Switching and Chiral Recognition of the Semiquinone Radical Anion Lithium Salt by Electron Nuclear Double Resonance Spectroscopy
Published in Journal of the American Chemical Society (17-09-2014)“…We present the synthesis and characterization of enantiomerically pure [6]helicene o-quinones (P)-(+)-1 and (M)-(−)-1 and their application to chiroptical…”
Get full text
Journal Article -
9
Studies towards the Total Synthesis of Amycolamicin: A Chiral Auxiliary‐Based Diels‐Alder Approach towards the Decalin Core
Published in European journal of organic chemistry (12-08-2022)“…The stereoselective synthesis of (1S,2S,5R)‐5‐((4‐methoxybenzyl)oxy)‐2‐methyl‐8‐methylene‐1,2,4a,5,6,7,8,8a‐octahy‐dronaphthalene‐1‐carboxylic acid (2) is…”
Get full text
Journal Article -
10
Skeletal metalation of lactams through a carbonyl-to-nickel-exchange logic
Published in Nature communications (29-08-2023)“…Classical metalation reactions such as the metal-halogen exchange have had a transformative impact on organic synthesis owing to their broad applicability in…”
Get full text
Journal Article -
11
Homochiral [2]Catenane and Bis[2]catenane from Alleno-Acetylenic Helicates - A Highly Selective Narcissistic Self-Sorting Process
Published in Journal of the American Chemical Society (07-10-2015)“…Homochiral strands of alternating alleno-acetylenes and phenanthroline ligands (P)-1 and (P 2)-2, as well as their corresponding enantiomers, selectively…”
Get full text
Journal Article -
12
Dispersion and Halogen-Bonding Interactions: Binding of the Axial Conformers of Monohalo- and (±)-trans-1,2-Dihalocyclohexanes in Enantiopure Alleno-Acetylenic Cages
Published in Journal of the American Chemical Society (06-09-2017)“…Enantiopure alleno-acetylenic cage (AAC) receptors with a resorcin[4]arene scaffold, from which four homochiral alleno-acetylenes converge to shape a cavity…”
Get full text
Journal Article -
13
Chiroptical Detection of Nonchromophoric, Achiral Guests by Enantiopure Alleno-Acetylenic Helicages
Published in Angewandte Chemie International Edition (01-12-2014)“…Enantiopure alleno‐acetylenic ligands assemble diastereoselectively upon the addition of a zinc(II) salt to form triple‐stranded helicates, which provide a…”
Get full text
Journal Article -
14
Single‐Crystal‐to‐Single‐Crystal (SCSC) Linear Polymerization of a Desymmetrized Anthraphane
Published in Chemistry : a European journal (09-10-2018)“…In this work we present one of the rare cases of single‐crystal‐to‐single‐crystal (SCSC) linear polymerizations, resulting in a novel ladder‐type polymer. The…”
Get full text
Journal Article -
15
Molecular Recognition and Cocrystallization of Methylated and Halogenated Fragments of Danicalipin A by Enantiopure Alleno-Acetylenic Cage Receptors
Published in Journal of the American Chemical Society (11-03-2020)“…Enantiopure (P)4- and (M)4-configured alleno-acetylenic cage (AAC) receptors offer a highly defined interior for the complexation and structure elucidation of…”
Get full text
Journal Article -
16
Structures and Properties of Molecular Torsion Balances to Decipher the Nature of Substituent Effects on the Aromatic Edge-to-Face Interaction
Published in Chemistry : a European journal (14-04-2014)“…Various recent computational studies initiated this systematic re‐investigation of substituent effects on aromatic edge‐to‐face interactions. Five series of…”
Get full text
Journal Article -
17
Complexation and Structure Elucidation of the Axial Conformers of Mono- and (±)-trans-1,2-Disubstituted Cyclohexanes by Enantiopure Alleno-Acetylenic Cage Receptors
Published in Chimia (25-04-2018)“…Single crystal X-ray diffraction is a powerful method to unambiguously characterize the structure of molecules with atomic resolution. Herein, we review the…”
Get full text
Journal Article -
18
Weak Arene Stabilization of Bulky Amido-Germanium(II) and Tin(II) Monocations
Published in Angewandte Chemie International Edition (17-09-2012)“…Guilty as charged: Germanium(II) and tin(II) monocations which are stabilized by an extremely bulky amido ligand and a very weakly coordinating anion are…”
Get full text
Journal Article -
19
Site-Selectivity of Prato Additions to C70: Experimental and Theoretical Studies of a New Thermodynamic Product at the dd-[5,6]-Junction
Published in Organic letters (05-07-2019)“…Three Prato monoadduct isomers were synthesized and structurally characterized by 1H, 13C NMR spectra and single-crystal X-ray diffraction, and one adduct on…”
Get full text
Journal Article -
20
Substituent Effects on Singlet Exciton Fission in Polycrystalline Thin Films of Cyano-Substituted Diaryltetracenes
Published in Journal of physical chemistry. C (05-10-2017)“…Cyano-substituted tetracenes (5,11-dicyano-6,12-diphenyltetracene, Tet) undergo exoergic singlet fission (SF), a spin-allowed photophysical process that…”
Get full text
Journal Article