Results 91 to 100 of about 357,701 (311)

Catalytic Carbonyl-Olefin Metathesis of Aliphatic Ketones: Iron(III) HomoDimers as Lewis Acidic Superelectrophiles

open access: yes, 2018
Catalytic carbonyl-olefin metathesis reactions have recently been developed as a powerful tool for carbon-carbon bondformation. However, currently available synthetic protocols rely exclusively on aryl ketone substrates while the corresponding aliphatic ...
Paul M., Zimmerman   +8 more
core   +1 more source

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

open access: yesAdvanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez   +9 more
wiley   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

open access: yesAdvanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal   +7 more
wiley   +1 more source

Crystal structure of 2,3-dimethylmaleic anhydride: continuous chains of electrostatic attraction

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the crystal structure of 2,3-dimethylmaleic anhydride, C6H6O3, the closest non-bonding intermolecular distances, between the carbonyl C and O atoms of neighboring molecules, were measured as 2.9054 (11) and 3.0509 (11) Å, which are well below the sum ...
Ren A. Wiscons   +2 more
doaj   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

open access: yesAdvanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella   +3 more
wiley   +1 more source

Reciprocal carbonyl–carbonyl interactions in small molecules and proteins

open access: yesNature Communications, 2017
Carbonyl-carbonyl π* non covalent interactions affect the structure and stability of small molecules and proteins. Here, the authors carry out experimental studies, analyses of crystallographic databases and theoretical calculations to describe an ...
Abdur Rahim   +4 more
doaj   +1 more source

Observation of 1,3-Diketones Formation in the Reaction of Bulky Acyl Chlorides with Methyllithium

open access: yesMolecules, 2012
The formation of 1,3-diketones was observed in the reactions of bulky acyl chlorides with methyllithium. The reaction products depend on the steric hindrance around the carbonyl group of the acyl chloride and the electronic effect of the group(s) linked ...
Liwen Yang, Nianfa Yang, Jian Zhang
doaj   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

open access: yesAdvanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria   +6 more
wiley   +1 more source

Protein Carbonylation [PDF]

open access: yesAntioxidants & Redox Signaling, 2010
Y. J. Suzuki   +2 more
openaire   +2 more sources

Molecular Iodine-Catalyzed Carbonyl-Olefin Metathesis

open access: yes, 2018
The carbonyl-olefin metathesis reaction is a synthetically valuable transformation that could facilitate rapid functional group interconversion and construction of new organic structures.
Kevin, Liyanto   +5 more
core   +1 more source

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