Listar Química molecular e de materiais (QUIMOLMAT) por título
Mostrando ítems 80-99 de 102
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Structural and electrochemical properties of Li-Ni-Co oxides synthesized by wet chemistry via a succinic-acid-assisted technique
(Elsevier, 2001)[Abstract] Lithiated metal oxides LiCo1−yNiyO2 were synthesized by a sol–gel method using succinic acid as chelating agent. Microcrystalline materials were formed by calcination in oxygen at 800°C. The physicochemical ... -
Structural Requirements for Ga3+ Coordination in Synthetic Analogues of the Siderophore Piscibactin Deduced by Chemical Synthesis and Density Functional Theory Calculations
(American Chemical Society, 2023-05-04)[Abstract] Stereoselective total synthesis of several analogues of piscibactin (Pcb), the siderophore produced by different pathogenic Gram-negative bacteria, was performed. The acid-sensitive α-methylthiazoline moiety was ... -
Student-Generated Videos to Promote Understanding of Chemical Reactions
(ACS, 2023-02-03)[Abstract] Students were tasked with the creation of videos of ordinary reactions to promote significant learning of complex concepts underlying chemical transformations. Interactive infographics were used to deliver ... -
Studies on the power factor of (Ba,Sr)Co2+xRu4−xO11 compounds
(Elsevier, 2011-02)[Abstract] We have prepared polycrystalline single-phase ACo2+xRu4−xO11 (A = Sr, Ba; 0 ≤ x ≤ 0.5) using the ceramic method and we have studied their structure, electrical resistivity and Seebeck coefficient, in order to ... -
Subcellular duplex DNA and G‐quadruplex interaction profiling of a hexagonal PtII metallacycle
(Wiley, 2019-04-19)[Abstract] Metal‐driven self‐assembly afforded a multitude of fascinating supramolecular coordination complexes (SCCs) with applications as catalysts, host–guest, and stimuli‐responsive systems. However, the interest in ... -
Synthesis and Structural Analysis of Push-Pull Imidazole-Triazole Based Fluorescent Bifunctional Chemosensor for CU2+ and FE2+ Detection
(Elsevier, 2022-07)[Abstract] Fluorescent imidazole-triazole based ligands L1 and L2 have been designed as chemical push-pull chemosensors for divalent metal ions and synthesized through palladium-catalyzed cross-coupling reactions using ... -
Synthesis of Acetylhomoagmatine
(Molecular Diversity Preservation International, 2006)The first total synthesis of acetylhomoagmatine, a natural product isolated form the methanolic extracts from the sponge Cliona celata, is performed in four steps in a very high yield. -
Synthesis of bench-stable solid triorganoindium reagents and reactivity in palladium-catalyzed cross-coupling reactions
(Royal Society of Chemistry, 2018-02-11)[Abstract] Bench-stable solid triorganoindium compounds have been prepared by coordination with 4-(dimethylamino)pyridine (DMAP). The solid R3In(DMAP) complexes are obtained from the corresponding solution of R3In in ... -
Synthesis of D–A–A and D–A–D Pyrimidine π-Systems Using Triorganoindium Reagents: Optical, Vibrational, and Electrochemical Studies
(American Chemical Society (ACS), 2019-06-26)[Abstract] A series of donor–acceptor–acceptor (D–A–A) and donor–acceptor–donor (D–A–D) systems based on a pyrimidine π-spacer with various substituents at the C-2 position has been successfully prepared. The synthesis ... -
Synthesis of Fused Chromenes by the Indium(III)-Catalyzed Cascade Hydroarylation/Cycloisomerization Reactions of Polyyne-Type Aryl Propargyl Ethers
(Royal Society of Chemistry (Gran Bretaña), 2018-06-15)[Abstract] Fused 2H-chromenes are prepared by the cascade hydroarylation/cycloisomerization reactions of polyyne-type aryl propargyl ethers using indium(III) catalysis. The transformation proceeds with 6-endo-dig ... -
The Chelate-To-Bridging Shift of Phosphane Dipalladacycles: Convenient Synthesis of Double A-Frame Tetranuclear Complexes
(Royal Society of Chemistry (Gran Bretaña), 2018-02-19)[Abstract] Palladacycles of the type [Pd2(Ph2PCH2PPh2-P,P)2(C,N:C,N)] (C,N:C,N = bis(N-2,3,4-trimethoxybenzylidene)-4,4′-sulfonyldianiline or -4,4′-oxydianiline) can undergo a spontaneous slow chelate-to-bridging diphosphane ... -
The Fish Pathogen Vibrio ordalii Under Iron Deprivation Produces the Siderophore Piscibactin
(MDPI, 2019-09-03)[Abstract] Vibrio ordalii is the causative agent of vibriosis, mainly in salmonid fishes, and its virulence mechanisms are still not completely understood. In previous works we demonstrated that V. ordalii possess several ... -
The Outer Membrane Protein FstC of Aeromonas salmonicida subsp. salmonicida Acts as Receptor for Amonabactin Siderophores and Displays a Wide Ligand Plasticity. Structure–Activity Relationships of Synthetic Amonabactin Analogues
(American Chemical Society, 2019-09-26)[Abstract] Amonabactins are a group of four related catecholate siderophores produced by several species of the genus Aeromonas, including A. hydrophila and the fish pathogen A. salmonicida subsp. salmonicida. Although the ... -
The Red Cage: Implementation of pH-Responsiveness Within a Macrobicyclic Pyridinium-Based Molecular Host
(Royal Society of Chemistry, 2021-11-09)[Abstract] We present herein the implementation of pH-responsiveness into a new polycationic macrobicyclic structure, namely what we have termed the “red cage”. The hydrolytically-stable cryptand-like compound has been ... -
The Siderophore Piscibactin Is a Relevant Virulence Factor for Vibrio anguillarum Favored at Low Temperatures
(Frontiers, 2018-08-02)[Abstract] Vibrio anguillarum causes vibriosis, a hemorrhagic septicaemia that affects many cultured marine fish species worldwide. Two catechol siderophores, vanchrobactin and anguibactin, were previously identified in ... -
@thermogramer: Thermal Imaging as a Tool for Science Communication and E-Learning in Social Media
(MDPI, 2022-03-07)[Abstract] The COVID-19 pandemic boosted the presence of thermal cameras in our society. These devices are becoming cheaper and smaller and can even be plugged in our smartphones. Therefore, soon enough everybody will have ... -
Thinking Outside the Blue Box: From Molecular to Supramolecular PH-Responsiveness
(Royal Society of Chemistry, 2019-10-23)[Abstract] We present herein the development of a new polycationic cyclophane: the “red box”, second in a series of hydrazone-based analogues of the well-known organic receptor cyclobis(paraquat-p-phenylene)cyclophane ... -
Thinking Outside the Blue Box: Induced Fit within a Unique Self-Assembled Polycationic Cyclophane
(ACS, 2019-02-07)[Abstract] We present herein the development of a new polycationic molecular receptor, inspired by the ubiquitous cyclobis(paraquat-p-phenylene)cyclophane (“blue box”). Our analogue, the “white box”, has been easily ... -
Transition-metal-free cross-coupling of indium organometallics with chromene and isochroman acetals mediated by BF3·OEt2
(American Chemical Society, 2016)[Abstract] A transition-metal-free coupling of triorganoindium reagents with benzopyranyl acetals mediated by a Lewis acid has been developed. The reaction of R3In with chromene and isochroman acetals in the presence of ... -
Triorganoindium reagents in Rh-catalyzed C–H activation/C–C cross-coupling reactions of 2-arylpyridines
(MDPI, 2018-06-29)[Abstract] The activation of C–H bonds through catalytic reactions using transition metals is an important challenge in organic chemistry in which the intermediates are related to those produced in the classical cross-coupling ...