Centres de Recerca de Catalunya (CERCA)
Now showing items 1-20 of 712
We report the synthesis of two 2-(4’-pyridyl-N-oxide)-substituted hemithioindigos. We probed their photoisomerization using UV-Vis and 1H NMR spectroscopic techniques. Light irradiation at 450 nm provoked the isomerization ...
The design and development of 5,5’-bistriazoles featuring aminomethyl substituents is discussed. An efficient synthetic procedure for the selective preparation of 4,4’-bis(aminomethyl)-5,5’-bistriazoles from commercially ...
The 9-cobalt(II)-containing trimeric, cyclic polyanion [Co9(OH)3(H2O)6(PO4)2(B-α-GeW9O34)3]21− (1) was synthesized in an aqueous phosphate solution at pH 8 and isolated as a hydrated mixed sodium−cesium salt. Polyanion ...
We describe using a dynamically self-assembled octa-imine cage as a molecular flask to accelerate a bimolecular Diels–Alder reaction. We investigate the cage’s binding properties using 1H NMR spectroscopic titrations, ITC ...
A diruthenium dyad molecule consisting of a 2,2-(1H-pyrazole-3,5-diyl)dipyridine (Hbpp) bridging ligand with the formula out-/in-[(bpy)2Ru(bpp)Ru(L)(tpy)]n+ (bpy = 2,2′-bipyridine, tpy = 2,2′:6′,2′′-terpyridine, L = Cl, ...
A new Ru complex with the formula [Ru(bpn)(pic)2]Cl2 (where bpn is 2,2′-bi(1,10-phenanthroline) and pic stands for 4-picoline) (1Cl2) is synthesized to investigate the true nature of active species involved in the ...
Chiral bipyrimidine-bridged dinuclear LnIII complexes of general formula [(μ-bipym){((+)-tfacam)3Ln}2] and [(μ-bipym){((-)-tfacam)3Ln}2], have been prepared from the assembly of Ln(AcO)3·nH2O (LnIII = Dy, Gd), (+)/(−)-3- ...
The production of propylene from renewable resources might be relevant to provide this compound in a scenario of scarcity due to the use of shale gas as a raw material. In the present, work we provide a full density ...
Prussian blue and its related compounds are formed by cheap and abundant metals and have shown their importance in the generation of new fuels by renewable sources. To optimize these compounds it is important to understand ...
An efficient protocol was developed to construct functionally dense quaternary carbons with concomitant formation of a new Csp3-Csp3 bond via Pd-catalyzed decarboxylative transformation of vinyl cyclic carbonates. This ...
We report herein a modular class of organic catalysts that, acting as donors, can readily form photoactive electron donor–acceptor (EDA) complexes with a variety of radical precursors. Excitation with visible light generates ...
Electrochemical impedance spectroscopy (EIS) is a highly versatile electrochemical technique capable of discretizing each electrochemical parameter in complex systems by employing a broad frequency spectrum. When EIS is ...
Palladium-catalysed cross-coupling reactions, central tools in fine-chemical synthesis, predominantly employ soluble metal complexes despite recognized challenges with product purification and catalyst reusability1– 3. ...
The atom-efficient reaction of a nontoxic, inexpensive and renewable C1-feedstock as CO2 with a variety of epoxide substrates and oxetane was studied employing iron(III) pyridylamino- bis(phenolate) complexes as homogeneous ...
We report here the first purely organometallic fac‐[MnI(CO)3(bis‐MeNHC)Br] complex with unprecedented activity for the selective electrocatalytic reduction of CO2 to CO, exceeding 100 turnovers with excellent faradaic ...
A hybrid photoanode comprising a multilayered heterostructured WO3/BiVO4 semiconductor and a molecular water oxidation catalyst Ru(tda)(py-pyr)2 (Ru-WOC, where tda is [2,2′:6′,2′′-terpyridine]-6,6′′-dicarboxylato and py-pyr ...
Cobalt hexacyanoferrate, the Co–Fe Prussian blue derivative (CoFePB), is an effective, selective and stable electrocatalyst for formate oxidation, exhibiting robust performance under a variety of electrolyte conditions. ...
The selective C2 epimerization of the glucose/mannose pair on a set of Mo-based catalysts was studied by means of density functional theory. The process, known as the Bilik reaction, encompasses a 1,2 C-shift of the C3 ...
