نتایج جستجو برای: carbonyl and carboxyl functionalized

تعداد نتایج: 16836415  

Journal: :Atmospheric Chemistry and Physics 2021

The formation, properties and lifetime of secondary organic aerosols in the atmosphere are largely determined by gas-particle partitioning coefficients participating vapours. Since these often difficult to measure or compute, we developed a machine learning (ML) model predict them given molecular structure as input. Our data-driven approach is based on dataset Wang et al. (Atmos. Chem. Phys., 1...

Journal: :Frontiers in Physics 2023

Functionalized membranes have high potential value in a broad range of practical applications, and the functional groups at membrane edge play vital role permeability membranes. Here, based on an edge-functionalized graphene oxide (GO) model, we theoretically report that high-frequency terahertz stimulation frequency near 44.0 THz can significantly enhance water by nearly five times. Its mechan...

Journal: :Organic & biomolecular chemistry 2013
Atul Goel Gaurav Taneja Ashutosh Raghuvanshi Ruchir Kant Prakas R Maulik

A new general methodology for the synthesis of various functionalized privileged oxygen heterocyclic scaffolds, viz. pyrones, coumarins, and benzannulated coumarins, is developed. The synthesis proceeds through carbanion-induced ring transformation of lactones with various methylene carbonyl compounds followed by DDQ-mediated unprecedented oxidative cleavage of oxaylidenes intermediates. Studie...

Journal: :Dalton transactions 2010
Giulia Peli Matteo Daghetta Piero Macchi Angelo Sironi Luigi Garlaschelli

Tetrairidium carbonyl clusters are potentially useful connectors for multidimensional functionalized frameworks with organic bis-phosphines as linkers. The reaction of Ir(4)(CO)(12) and 1,4-bis(diphenylphosphinomethyl)benzene produces an oligomeric cyclic structure, made of 4 connectors and 6 linkers, a possible intermediate in the formation of three dimensional networks.

2007
S W. Lee Haibo Li Rashid Bashir Sang Woo Lee

The authors present dielectrophoresis DEP -based tweezers that can be used to characterize the interactions between a particle and the surface it is attached to, within a microfluidic device. As a proof of concept, 5.4 m polystyrene beads functionalized by carboxyl group were attached on a bare and poly-L-lysine functionalized oxide surface. Negative dielectrophoresis force was generated using ...

Journal: :The Journal of biological chemistry 1960
D I CRANDALL R C KRUEGER F ANAN K YASUNOBU H S MASON

In the net reaction catalyzed by homogentisate oxidase of rat liver, two atoms of osygen are added to the double bond between carbon atoms 1 and 2 of homogentisate (2, 3) resulting in the formation of maleylacetoacetate (Fig. 1). The enzyme is located in the soluble phase of the liver cell; its activity is totally independent of the hydrogen and electron transport system. Its properties and mod...

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