Results 51 to 60 of about 73,933 (268)

Study of pyridine-mediated electrochemical reduction of CO2 to methanol at high CO2 pressure [PDF]

open access: yes, 2016
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The recently proposed highly efficient route of pyridine-catalyzed CO 2 reduction to methanol was explored on platinum electrodes at high CO 2 pressure.
Barton   +39 more
core   +2 more sources

Crystal structure of 4,4′-[(1,3,5,7-tetraoxo-1,3,3a,4,4a,5,7,7a,8,8a-decahydro-4,8-ethenopyrrolo[3,4-f]isoindole-2,6-diyl)bis(methylene)]bis(pyridin-1-ium) dinitrate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title salt, C24H22N4O42+·2NO3−, the cation is U-shaped with the two isoindole dione rings inclined to one another by 60.41 (13)°, while the two outer pyridine rings are inclined to one another by 2.77 (12)°.
Zhimin Liu
doaj   +1 more source

Strategies for Loading and Releasing Peptide Therapeutics in Biodegradable Carriers

open access: yesAdvanced Functional Materials, EarlyView.
A biodegradable carrier‐based peptide delivery system is a powerful treatment platform for diverse diseases, owing to its superior therapeutic efficacy and low toxicity. This review examines the conventional peptide‐loaded carrier fabrication process and its current limitations.
Wookyoung Jang, Ki Wan Bong
wiley   +1 more source

Cooperative Al(Salen)-Pyridinium Catalysts for the Asymmetric Synthesis of <em>trans</em>-Configured β-Lactones by [2+2]-Cyclocondensation of Acylbromides and Aldehydes: Investigation of Pyridinium Substituent Effects

open access: yesMolecules, 2012
The <em>trans</em>-selective catalytic asymmetric formation of β-lactones constitutes an attractive surrogate for <em>anti</em>-aldol additions.
René Peters   +4 more
doaj   +1 more source

Theoretical Analysis of the Heterocyclic [4+2] Cycloaddition Between Pyridinium Ion and Enol Ether

open access: yesChemistryOpen, 2021
Dearomative heterocyclic [4+2] cycloaddition between the N‐(2,4‐dinitrophenyl)pyridinium ion of nicotinamide and an enol ether was analyzed by Density Functional Theory (DFT) calculations.
Masataka Nakahara   +3 more
doaj   +1 more source

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

open access: yesAdvanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya   +22 more
wiley   +1 more source

Gold amides as anticancer drugs: synthesis and activity studies [PDF]

open access: yes, 2013
Modular gold amide chemotherapeutics: Access to modern chemotherapeutics with robust and flexible synthetic routes that are amenable to extensive customisation is a key requirement in drug synthesis and discovery.
Amagai   +34 more
core   +1 more source

New Constituents from the Korean Sponge Plakortis simplex

open access: yesMarine Drugs, 2013
Six new cyclic peroxides (1–6) were isolated from the Korean sponge Plakortis simplex, along with two new alkylpyridinium alkaloids (7 and 8). The structures of these compounds were completely determined by a combination of NMR analysis and chemical ...
Ok-Hwa Kang   +4 more
doaj   +1 more source

Organelle Localization‐Induced Bio‐Orthogonal Polymerization (OLIBOP) for Photostable Super‐Resolution Live‐Cell Imaging

open access: yesAdvanced Healthcare Materials, EarlyView.
Organelle localization‐induced biorthogonal polymerization enables direct synthesis of photostable poly‐AIEgens within targeted organelles for super‐resolution live‐cell imaging. ABSTRACT Real‐time monitoring of dynamic biological processes demands fluorescent probes that can withstand prolonged light exposure without photobleaching—a critical ...
Gaeun Park   +4 more
wiley   +1 more source

2-[5-(Pyridin-2-yl)-1,3,4-thiadiazol-2-yl]pyridin-1-ium perchlorate

open access: yesIUCrData, 2017
The cation of the title molecular salt, C12H9N4S+·ClO4−, is approximately planar, with the pyridine and pyridinium rings being inclined to the central thiadiazole ring by 6.51 (9) and 9.13 (9)°, respectively.
Abdelhakim Laachir   +4 more
doaj   +1 more source

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