Articles with "lewis" as a keyword



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Appearance Enhancement: A Cue-Based Approach.

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Published in 2021 at "Archives of sexual behavior"

DOI: 10.1007/s10508-021-01957-2

Abstract: Davis and Arnocky (2020) offer an impressive review that pulls together a large body of disparate studies and draws valuable attention to physical appearance enhancement behavior. Through numerous examples, they illustrate that an evolutionary framework… read more here.

Keywords: appearance; enhancement behavior; lewis; appearance enhancement ... See more keywords
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Silicon Carbamates by CO2 Fixation: Brønsted Acid Labile Precursor of a Lewis Superacid.

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Published in 2022 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.2c02754

Abstract: Treatment of Lewis superacidic Si(catCl)2(MeCN)2 and tetramethylpiperidine (TMP) or hexahydropyrimidopyrimidine (hppH) with CO2 leads to an FLP-type formation of silicon carbamates. The employed Lewis base determines the hapticity at silicon and the reactivity of the… read more here.

Keywords: silicon carbamates; co2 fixation; nsted acid; lewis ... See more keywords
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Local Lewis Acidity of (TiO2)n (n = 7–10) Nanoparticles Characterized by DFT-Based Descriptors: Tools for Catalyst Design

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Published in 2017 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.7b09311

Abstract: Transition metal oxide nanoparticles are common materials in a multitude of applications including heterogeneous catalysis, solar energy harvesting, and energy storage. Understanding the particles’ interplay with their surroundings is key to their efficient usage and… read more here.

Keywords: dft based; lewis; based descriptors; tio2 nanoparticles ... See more keywords
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BArF3-Catalyzed Imine Hydroboration with Pinacolborane Not Requiring the Assistance of an Additional Lewis Base

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Published in 2017 at "Organometallics"

DOI: 10.1021/acs.organomet.7b00381

Abstract: The rarely used boron Lewis acid tris[3,5-bis(trifluoromethyl)phenyl]borane (BArF3) is found to be an excellent catalyst for metal-free hydroboration of imines. In the presence of 1.0 mol % of BArF3, several ketimines and aldimines undergo hydroboration… read more here.

Keywords: barf3; lewis; lewis base; hydroboration ... See more keywords
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Catalytic Asymmetric Benzylation of Azomethine Ylides Enabled by Synergistic Lewis Acid/Palladium Catalysis.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c00865

Abstract: The synergistic chiral Lewis acid/achiral Pd catalyst system was successfully applied in the enantioselective benzylation of various imine esters, giving a range of α-benzyl-substituted α-amino acid derivatives in satisfactory yield with excellent enantioselectivity. It is… read more here.

Keywords: lewis; asymmetric benzylation; lewis acid; benzylation azomethine ... See more keywords
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Encapsulating Electron-Rich Pd NPs with Lewis Acidic MOF: Reconciling the Electron-Preference Conflict of the Catalyst for Cascade Condensation via Nitro Reduction.

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Published in 2022 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.1c22256

Abstract: Cascade reactions take advantage of step-saving and facile operation for obtaining chemicals. Herein, catalytic hydrogenation of nitroarene coupled condensation with β-diketone to afford β-ketoenamines is achieved by an integrated nanocatalyst, Pd-e@UiO-66. The catalyst has the… read more here.

Keywords: condensation; mof; catalyst; lewis ... See more keywords
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Lewis Acidity Scale of Diaryliodonium Ions toward Oxygen, Nitrogen, and Halogen Lewis Bases.

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Published in 2020 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.9b12998

Abstract: Equilibrium constants for the associations of 17 diaryliodonium salts Ar2I+X- with 11 different Lewis bases (halide ions, carboxylates, p-nitrophenolate, amines, and tris(p-anisyl)phosphine) have been investigated by titrations followed by photometric or conductometric methods as well… read more here.

Keywords: lewis bases; iodonium ions; lewis; diaryliodonium ... See more keywords
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Cationic two-dimensional inorganic networks of antimony oxide hydroxide for Lewis acid catalysis.

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Published in 2018 at "Dalton transactions"

DOI: 10.1039/c8dt00188j

Abstract: We have successfully synthesized a rare example of inorganic layered materials possessing a positive charge, which is well outside the isostructural set of layered double hydroxides. This layered architecture consists of two-dimensional corrugated [Sb2O2(OH)]+ layers… read more here.

Keywords: cationic two; two dimensional; lewis; inorganic networks ... See more keywords
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Reversible complexation of ammonia by breaking a manganese-manganese bond in a manganese carbonyl ethylenedithiolate complex: a theoretical study of an unusual type of Lewis acid.

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Published in 2018 at "Dalton transactions"

DOI: 10.1039/c8dt04217a

Abstract: The reaction of Mn(CO)5Br with sodium ethylenedithiolate was reported in 1968 to give a dark red binuclear H2C2S2Mn2(CO)6 complex possessing the unusual property of complexing reversibly with ammonia to give a yellow H2C2S2Mn2(CO)6·NH3 adduct. In… read more here.

Keywords: bond; complexation; lewis; h2c2s2mn2 ... See more keywords
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Fully alternating and regioselective ring-opening copolymerization of phthalic anhydride with epoxides using highly active metal-free Lewis pairs as a catalyst

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Published in 2018 at "Polymer Chemistry"

DOI: 10.1039/c8py00715b

Abstract: A recent study has been directed to the design of metal-free Lewis pair catalysts for ring-opening alternating copolymerization (ROAP) reactions to enhance both activity and selectivity. While the simplest types of organic bases/Lewis bases (for… read more here.

Keywords: ring opening; pair; free lewis; lewis ... See more keywords
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Targeting epithelial expressed Sialyl Lewis glycans improves colonic mucosal wound healing and protects against colitis.

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Published in 2020 at "JCI insight"

DOI: 10.1172/jci.insight.135843

Abstract: Dysregulated healing of injured mucosa is a hallmark of many pathological conditions including inflammatory bowel disease. Mucosal injury and chronic inflammation including persistent neutrophil (PMN) infiltration are also associated with alterations in epithelial glycosylation. Previous… read more here.

Keywords: wound healing; sialyl lewis; lewis glycans; mucosal ... See more keywords