Results 21 to 30 of about 973 (110)

Steuerung der Rotation eines Guanidiniumkations durch Kation‐π‐Wechselwirkungen

Angewandte Chemie, Volume 138, Issue 29, 13 July 2026.
Ein Lanthanid‐π‐Container wurde für die Bindung eines Guanidiniumkations in dessen aromatischer Kavität mittels Kation‐π‐Wechselwirkungen verwendet. Röntgenkristallographie und Festkörper‐NMR‐Spektroskopie bei schneller Rotation um den magischen Winkel wurden verwendet, um die zugrundeliegenden Wirt‐Gast‐Interaktionen zu untersuchen.
Hannah Busch, Lennart Günzel, Ettore Bartalucci, Robert Schuster, Christian Zocher, Martin Börner, Chandan K. Das, Florian Taube, Björn Corzilius, Maria Fyta, Matthias Ernst, Berthold Kersting, Thomas Wiegand   +12 more
wiley   +1 more source

Controlling the Guanidinium Cation Rotation by Cation–π Interactions

Angewandte Chemie International Edition, Volume 65, Issue 29, 13 July 2026.
A lanthanide π‐container has been employed to trap a guanidinium cation inside the aromatic cavity by cation–π interactions. X‐ray crystallography and solid‐state nuclear magnetic resonance (NMR) spectroscopy at fast magic‐angle spinning (MAS) frequencies have been utilized to probe the underlying host–guest interactions.
Hannah Busch, Lennart Günzel, Ettore Bartalucci, Robert Schuster, Christian Zocher, Martin Börner, Chandan K. Das, Florian Taube, Björn Corzilius, Maria Fyta, Matthias Ernst, Berthold Kersting, Thomas Wiegand   +12 more
wiley   +1 more source

Cucurbit[8]Uril Achieved Single‐Molecule Chiral Transfer to Supramolecular Circularly Polarized Luminescence

Advanced Science, Volume 13, Issue 39, 13 July 2026.
A single‐molecule cascade supramolecular system comprising L/D‐FPy, CB[8], and SC4AD serves as an efficient light‐harvesting platform. It facilitates cascade energy transfer and chiral transfer to acceptor dyes. Co‐assembly with a PVA matrix produces a multicolor solid film that exhibits enhanced luminescence dissymmetry factors (glum), enabling ...
Yongxue Li, Jie Wu, Weiheng Zhang, Hengzhi Zhang, Wei‐Lei Zhou, Yu Liu   +5 more
wiley   +1 more source

Synthesis of Flavin–Calix[4]arene Conjugate Derivatives

Helvetica Chimica Acta, 2011
AbstractThe synthesis of two new flavin substituted calix[4]arene derivatives, 9 and 10, is described. The first flavin substituted calix[4]arene derivative 9 was synthesized by the reaction of 3‐methylalloxazine (5) with 25,27‐bis(3‐bromopropoxy)‐26,28‐dihydroxy‐5,11,17,23‐tetra(tert‐butyl)calix[4]arene (4) in high yield (92%). The other derivative 10
Sayin, Serkan, Akkus, Gulderen Uysal, Cibulka, Radek, Stibor, Ivan, Yilmaz, Mustafa   +4 more
openaire   +3 more sources

New Carboxytriazolyl Amphiphilic Derivatives of Calix[4]arenes: Aggregation and Use in CuAAC Catalysis. [PDF]

Int J Mol Sci, 2023
Mironova D, Bogdanov I, Akhatova A, Sultanova E, Garipova R, Khannanov A, Burilov V, Solovieva S, Antipin I.   +8 more
europepmc   +1 more source

The Use of Anhydrous Barium Hydroxide for Selective Alkylation of Dialkyloxy-tert-butyl-calix[4]arenes. [PDF]

Molecules, 2023
Yesypenko OA, Trybrat OO, Kalchenko VI.
europepmc   +1 more source

Synthesis of Imidazolium Cations Linked to Para-t-Butylcalix[4]arene Frameworks and Their Use as Synthons for Nickel-NHC Complexes Tethered to Calix[4]arenes. [PDF]

Molecules, 2023
Chetcuti MJ, Naghmouchi H, Hamdi A, Karmazin L.   +3 more
europepmc   +1 more source

Synthesis of Ionizable Calix[4]arenes for Chelation of Selected Divalent Cations. [PDF]

Molecules, 2022
Blumberg M, Al-Ameed K, Eiselt E, Luber S, Mamat C.   +4 more
europepmc   +1 more source

Electronic Tuning of Host-Guest Interactions within the Cavities of Fluorophore-Appended Calix[4]arenes. [PDF]

Molecules, 2022
Rawat V, Vigalok A.
europepmc   +1 more source

Synthesis of Ultrastable and Bioconjugable Ag, Au, and Bimetallic Ag_Au Nanoparticles Coated with Calix[4]arenes. [PDF]

ACS Omega, 2021
Retout M, Jabin I, Bruylants G.
europepmc   +1 more source