Chloride-π interaction along with lone-pair electrons-π interaction, hydrogen bonding and π-π stacking induced the hexameric assembly of the parent macrocycle into a rectangular supramolecular cage in the solid state.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/c2cc36465d | DOI Listing |
J Am Chem Soc
October 2024
Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China.
Superstructures assembled by subnanometer polyoxometalate (POM) clusters are interesting for their attractive structures and excellent properties. However, the complex interactions between clusters and cations make it challenging to control the assembly of POM clusters at the subnanometer scale. Here, 20 cluster-assembled superstructures built by two types of MPWO (M = La-Lu) clusters are successfully synthesized.
View Article and Find Full Text PDFAcc Chem Res
April 2024
Key Laboratory of Organosilicon Chemistry and Materials Technology of the Ministry of Education, College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, 311121 Hangzhou, P. R. China.
Supramolecular coordination complexes (SCCs) are predictable and size-tunable supramolecular self-assemblies constructed through directional coordination bonds between readily available organic ligands and metallic receptors. Based on planar and 3D structures, SCCs can be mainly divided into two categories: metallacycles (e.g.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
May 2024
Department of Chemistry, University of Colorado Boulder, Boulder, CO-80309, USA.
Naturally occurring polymeric structures often consist of 1D polymer chains intricately folded and entwined through non-covalent bonds, adopting precise topologies crucial for their functionality. The exploration of crystalline 1D polymers through dynamic covalent chemistry (DCvC) and supramolecular interactions represents a novel approach for developing crystalline polymers. This study shows that sub-angstrom differences in the counter-ion size can lead to various helical covalent polymer (HCP) topologies, including a novel metal-coordination HCP (m-HCP) motif.
View Article and Find Full Text PDFChemistry
May 2024
Institut de Chimie et Physique des Matériaux de Strasbourg, UMR 7504, CNRS-University of Strasbourg, 67034, Strasbourg, France.
Lipophilic biphenylthiophene- and phenanthrothiophene-triazine compounds, BPTTn and CPTTn, respectively, were prepared by a tandem procedure involving successive Suzuki-Miyaura coupling and Scholl cyclodehydrogenation reactions. These compounds display photoluminescence in solution and in thin film state, solvatochromism with increasing solvent's polarity, as well as acidochromism and metal ion recognition stimuli-responsive fluorescence. Protonation of BPTT10 and CPTT10 by trifluoroacetic acid results in fluorescence quenching, which is reversibly restored once treated with triethylamine (ON-OFF switch).
View Article and Find Full Text PDFAngew Chem Int Ed Engl
April 2024
Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149, Münster, Germany.
Oligo(phenyleneethynylene)s (OPEs) have attracted widespread attention due to their remarkable (opto)electronic and photophysical properties, which have enabled numerous applications. The versatile functionalization possibilities of OPEs make them unique candidates to form various shape-persistent geometries, including linear, triangular, rectangular, hexagonal and macrocyclic. However, as a result of this structural variety, it is oftentimes challenging to correlate molecular design with self-assembly properties.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!