The structure of the title quinoline carboxamide derivative, CHNO, is described. The quinoline moiety is not planar as a result of a slight puckering of the pyridine ring. The secondary amine has a slightly pyramidal geometry, certainly not planar. Both intra- and inter-molecular hydrogen bonds are present. Hirshfeld surface analysis and lattice energies were used to investigate the inter-molecular inter-actions.
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http://dx.doi.org/10.1107/S2056989020000298 | DOI Listing |
Angew Chem Int Ed Engl
January 2025
Cardiff University, School of Chemistry, Park Place, Main Building, CF10 3AT, Cardiff, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND.
Despite the remarkable advancements in hypervalent iodine chemistry, exploration of bromine and chlorine analogues remains in its infancy due to their difficult synthesis. Herein, we introduce six-membered cyclic λ3-bromanes and λ3-chloranes. Through single-crystal X-ray structural analyses and conformational studies, we delineate the crucial bonding patterns pivotal for the thermodynamic stability of these compounds.
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January 2025
University of Delaware, Chemistry and Biochemistry, UNITED STATES OF AMERICA.
We describe synthesis of BN-doped nanographene containing five phenylene units, boron and nitrogen atoms with both alternating ortho-disposition as well as direct B-N connection. Resulting BN doped nanographene exhibits blue fluorescence at 441 nm with extraordinary narrow fluorescence peak with full width at half maximum (FWHM) = 10-11 nm. Crystallography reveals supramolecular organization of this compound in the crystal phase.
View Article and Find Full Text PDFChem Sci
December 2024
Instituto de Ciencia Molecular (ICMol), Universidad de Valencia c/Catedrático José Beltrán 2 Paterna 46980 Spain
We present the synthesis of a lanthanoid-organic framework (LOF) featuring a dynamic structure that exhibits tunable magnetic properties. The LOF undergoes breathing and gate-opening phenomena in response to changes in DMF content and N sorption, leading to the emergence of new crystal phases with distinct characteristics. Notably, the desolvated form of the LOF excels as a single-ion magnet, while the fully activated structure demonstrates impressive qubit properties, exhibiting Rabi oscillations up to 60 K.
View Article and Find Full Text PDFOrganometallics
January 2025
Organic Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands.
We report the synthesis and characterization of a series of high- and low-spin dicobalt complexes of the PNNP expanded pincer ligand. Reacting this dinucleating ligand in its neutral form with two equiv of CoCl(tetrahydrofuran) yields a high-spin dicobalt complex featuring one Co inside and one Co outside of the dinucleating pocket. Performing the same reaction in the presence of two equivalents of KOtBu provides access to a high-spin dicobalt complex wherein both Co centers are bound within the PNNP pocket, and this complex also features a bridging OtBu ligand.
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January 2025
Universite Claude Bernard Lyon 1, ICBMS, Bâtiment Lederer, 1 Rue Victor Grignard, F-69622, Villeurbanne, FRANCE.
In this article we describe research on the synthesis and characterization of a family of "Janus" amphiphiles composed of disaccharide head groups and alkaloid units joined together via a methylene linker, and bearing a lateral aliphatic chain of varying length. The condensed phases formed by self-organization of the products as a function of temperature were characterized by differential scanning calorimetry, thermal polarized light microscopy, and small angle X-ray scattering, allied with computational modelling and simulations. Structural studies on heating specimens from the solid showed that some homologues exhibited lamellar, columnar and bicontinuous mesophases, whereas the same homologues revealed different phase sequences on cooling from the amorphous liquid.
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