Results 11 to 20 of about 21,892 (259)

Catalytic asymmetric functionalization of bicyclo[1.1.0]butane boronic esters enabled by 1,2-oxygen migration [PDF]

open access: yesNature Communications
The formation of boronate complexes through the coordination of alkoxide salts with organoborons serves as key intermediates in transition-metal-catalyzed coupling reactions.
Xin-Yuan Zhu   +3 more
doaj   +2 more sources

An unusual chiral-at-metal mechanism for BINOL-metal asymmetric catalysis [PDF]

open access: yesNature Communications
Chiral binaphthols (BINOL)-metal combinations serve as powerful catalysts in asymmetric synthesis. Their chiral induction mode, however, typically relies on multifarious non-covalent interactions between the substrate and the BINOL ligand.
Zhenxing Li   +8 more
doaj   +2 more sources

Heterobimetallic Uranium(V)-Alkali Metal Alkoxides: Expanding the Chemistry of f-Block Elements [PDF]

open access: yesMolecules
Heterobimetallic uranium(V) alkoxides incorporating monovalent alkali metal counterions display remarkable structural versatility, dictated by the steric demands of the alkoxide ligands and the ionic radius of the alkali metal.
Andreas Lichtenberg   +3 more
doaj   +2 more sources

Nanostructured metal oxide@carbon dots through sequential chitosan templating and carbonisation route

open access: yesCarbohydrate Polymer Technologies and Applications, 2021
Pyrolytic conversion of biomass stands as one of the most promising sustainable routes to carbon-based nanostructures, including carbon dots (CDs).
Nisrine Hammi   +5 more
doaj   +1 more source

Low temperature XPS of sensitive molecules: Titanium butoxide photoelectron spectra

open access: yesApplied Surface Science Advances, 2023
XPS analysis of soft materials remains a challenging task, with sample degradation presenting itself across a wide range of different materials. Correct protocols when performing the experimental spectral acquisition will ensure minimal proliferation of ...
Mark A. Isaacs
doaj   +1 more source

DBD plasma‐assisted coating of metal alkoxides on sulfur powder for Li–S batteries

open access: yesBattery Energy, 2023
Sulfur particles coated by activation of metal alkoxide precursors, aluminum–sulfur (Alu–S) and vanadium–sulfur (Van–S), were produced by dielectric barrier discharge (DBD) plasma technology under low temperature and ambient pressure conditions.
Ahmed Shafique   +9 more
doaj   +1 more source

Nanocomposite organomineral hybrid materials. Part 2 [PDF]

open access: yesНанотехнологии в строительстве, 2016
The paper addresses the issues of alkoxide method of sol-gel synthesis and non-hydrolytic method of sol-gel synthesis and colloidal method of sol-gel synthesis.
KUDRYAVTSEV Pavel Gennadievich   +1 more
doaj   +1 more source

Tin dioxide sol-gel derived thin films deposited on porous silicon [PDF]

open access: yes, 1996
Undoped and Sb-doped SnO2 sol¿gel derived thin films have been prepared for the first time from tin (IV) ethoxide precursor and SbCl3 in order to be utilised for gas sensing applications where porous silicon is used as a substrate.
Berg, A. van den   +8 more
core   +10 more sources

Nanocomposite organomineral hybrid materials. Part I [PDF]

open access: yesНанотехнологии в строительстве, 2016
The paper addresses the issues of alkoxide method of sol-gel synthesis and non-hydrolytic method of sol-gel synthesis and colloidal method of sol-gel synthesis.
KUDRYAVTSEV Pavel Gennadievich   +1 more
doaj   +1 more source

Recent advances using cyclopropanols and cyclobutanols in ring-opening asymmetric synthesis

open access: yesGreen Synthesis and Catalysis, 2022
Due to high ring strain energies, cyclopropanols and cyclobutanols have a strong tendency of breaking the endocyclic C–C bonds to participate in versatile organic transformations.
Hong Yan, Gregory S. Smith, Fen-Er Chen
doaj   +1 more source

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