Examinar por departamento (cas.) "Química Orgánica e Inorgánica"
Mostrando ítems 1-20 de 145
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A Lamellar Zn-Based Coordination Polymer Showing Increasing Photoluminescence upon Dehydration
(MDPI, 2023-07-25)The present study reports on a 2D lamellar coordination polymer (CP) of {[Zn(µ3-pmdc)(H2O)]·H2O}n formula (pmdc = pyrimidine-4,6-dicarboxylate). This CP is synthesized under an appropriate acid-base reaction between the ... -
A metal-organic framework based on Co(II) and 3-aminoisonicotinate showing specific and reversible colourimetric response to solvent exchange with variable magnet behaviour
(Elsevier, 2022-06)[EN] A versatile metal-organic system consisting of Co-based compounds that show reversible transformations between a 3D metal-organic framework (MOF) of {[Co(mu-3isoani)(2)]center dot DMF}(n) (1) formula (where 3isoani - ... -
A Milestone in the Chemical Synthesis of Fe3O4 Nanoparticles: Unreported Bulklike Properties Lead to a Remarkable Magnetic Hyperthermia
(ACS, 2021-11-10)Among iron oxide phases, magnetite (Fe3O4) is often the preferred one for nanotechnological and biomedical applications because of its high saturation magnetization and low toxicity. Although there are several synthetic ... -
A study of metal-organic framework sorption phenomena in solution.
(2023-05-04)Metal-organic Frameworks (MOFs) are crystalline porous materials built up from metal ions or clusters connected with organic linkers through strong coordination bonds. Among the most outstanding properties their high ... -
A synergistic exploitation to produce high-voltage quasi-solid-state lithium metal batteries
(Nature Research, 2021-09-30)[EN]The energy content increase is of paramount importance for the development of future Li-based batteries. Here, the authors propose a gel polymer electrolyte in combination with a positive electrode comprising of a ... -
Absence of Intermediates in the BINOL-Derived Mg(II)/Phosphate-Catalyzed Desymmetrizative Ring Expansion of 1-Vinylcyclobutanols
(American Chemical Society, 2021-12)[EN] The catalyzed desymmetrizative ring expansion of alkenylcyclobutanols promoted by halofunctionalization of the alkene moiety with Nbromosuccinimide has been experimentally and computationally studied. The reaction ... -
Amide-Directed Intramolecular Co(III)-Catalyzed C-H Hydroarylation of Alkenes for the Synthesis of Dihydrobenzofurans with a Quaternary Center
(American Chemical Society, 2020-07-17)The first example of Cp*Co(III)-catalyzed intramolecular hydroarylation of allyl aryl ethers using an amide directing group for the preparation of 3,3-disubstituted dihydrobenzofurans in high yields is described. The ... -
Amorphous FeCoCrSiB Ribbons with Tailored Anisotropy for the Development of Magnetic Elements for High Frequency Applications
(MDPI, 2022)The ferromagnetic resonance (FMR) in the frequency range of 0.5 to 12.5 GHz has been investigated as a function of external magnetic field for rapidly quenched Fe3Co67Cr3Si15B12 amorphous ribbons with different features ... -
An Approach to the Synthesis of a Hepatitis C Virus Inhibitor through a Proline-Catalyzed 1,3-Dipolar Cycloaddition Using Acrolein
(Thieme, 2021-09-06)An efficient and easy protocol for performing 1,3-dipolar cycloaddition using azomethine ylides and acrolein is presented. The reaction catalyzed by d-proline allows the synthesis of C-3 unsubstituted pyrrolidines. The ... -
An easy and simple method for the immobilization of dyes through click reactions: activated alkyne, copper not needed
(RSC, 2024)The copper-free azide–alkyne click reaction has shown to be a successful alternative to immobilize covalently a fluorescente compound onto poly(-L-lactic) acid (PLLA) surfaces. Proceded by basic hydrolysis and amidation ... -
Asymmetric Dual Enamine Catalysis/Hydrogen Bonding Activation
(MDPI, 2023-07-11)Asymmetric enamine base activation of carbonyl compounds is a well-known and widely used strategy for providing functionalization of organic compounds in an efficient way. The use of solely organic substances, which in ... -
Asymmetric Organocatalysis: A Survival Guide to Medicinal Chemists
(MDPI, 2022-12-29)Majority of drugs act by interacting with chiral counterparts, e.g., proteins, and we are, unfortunately, well-aware of how chirality can negatively impact the outcome of a therapeutic regime. The number of chiral, non-racemic ... -
Asymmetric Synthesis of Adjacent Tri- and Tetrasubstituted Carbon Stereocenters: Organocatalytic Aldol Reaction of an Hydantoin Surrogate with Azaarene 2-Carbaldehydes
(Wiley-VCH, 2019-07-18)A bifunctional amine/squaramide catalyst promoted direct aldol addition of an hydantoin surrogate to pyridine 2-carbaldehyde N-oxides to afford adducts bearing two vicinal tertiary/quaternary carbons in high diastereo- and ... -
Atomic and Specificity Details of Mucin 1 O-Glycosylation Process by Multiple Polypeptide GalNAc-Transferase Isoforms Unveiled by NMR and Molecular Modeling
(American Chemical Society, 2022-02-24)[EN] The large family of polypeptide GalNAc-transferases (GalNAc-Ts) controls with precision how GalNAc O-glycans are added in the tandem repeat regions of mucins (e.g., MUC1). However, the structural features behind the ... -
Biomimetic Tweezers for N-Glycans: Selective Recognition of the Core GlcNAc(2) Disaccharide of the Sialylglycopeptide SGP
(Wiley, 2023-03)In recent years, glycomics have shown how pervasive the role of carbohydrates in biological systems is and how chemical tools are essential to investigate glycan function and modulate carbohydrate-mediated processes. ... -
Catalyst-Free Amino-Yne Click Reaction: An Efficient Way for Immobilizing Amoxicillin onto Polymeric Surfaces
(MDPI, 2024-01-15)Surface modifications play a crucial role in enhancing the functionality of biomaterials. Different approaches can be followed in order to achieve the bioconjugation of drugs and biological compounds onto polymer surfaces. ... -
Catalytic Enantioselective Transannular Reactions towards C-B and C-C Bond Formation
(2023-03-24)Las reacciones transanulares han demostrado ser una herramienta sintética eficiente para la preparación de moléculas policíclicas complejas. Esta reactividad se ve favorecida por la liberación de tensión que se produce ... -
Combined experimental and theoretical investigation on the magnetic properties derived from the coordination of 6-methyl-2- oxonicotinate to 3d-metal ions
(Royal Society of Chemistry, 2022-06-08)Five new compounds are reported herein starting from 2-hydroxy-6-methylnicotinic acid (H2h6mnic) and first-row transition metal ions, although H2h6mnic shows a prototropy in solution to lead to the 6-methyl-2-oxonicotinate ... -
Consecutive Single-Crystal-to-Single-Crystal Isomerization of Novel Octamolybdate Anions within a Microporous Hybrid Framework with Robust Water Sorption Properties
(Wiley, 2023-10)The 3D hybrid framework [{Cu(cyclam)}3(κ-Mo8O27)] ⋅ 14H2O (1) (cyclam=1,4,8,11-tetraazacyclotetradecane) undergoes sequential single-crystal-to-single-crystal transformations upon heating to afford two different anhydrous ... -
Copper(II) invigorated EHU-30 for continuous electroreduction of CO2 into value-added chemicals
(Nature, 2022-05-20)The doping of zirconium based EHU-30 and EHU-30-NH2 metal-organic frameworks with copper(II) yielded a homogeneous distribution of the dopant with a copper/zirconium ratio of 0.04-0.05. The doping mechanism is analysed by ...