Articles with "lewis pairs" as a keyword



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Boron based intramolecular heterocyclic frustrated Lewis pairs as organocatalysts for CO2 adsorption and activation

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Published in 2022 at "Journal of Computational Chemistry"

DOI: 10.1002/jcc.26949

Abstract: The massive increase in the amount of carbon dioxide (CO2) in the atmosphere has led to serious environmental problems. One of the best ways to tackle this problem is the CO2 capture and its utilization… read more here.

Keywords: frustrated lewis; adsorption activation; co2; lewis pairs ... See more keywords
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Dihydroazulene-vinylheptafulvene based photoswitchable lewis pairs for tunable H2 activation

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Published in 2019 at "International Journal of Hydrogen Energy"

DOI: 10.1016/j.ijhydene.2019.03.251

Abstract: Abstract Photoswitchable catalysis involves alteration in the intrinsic catalytic properties of an active species through a reversible photochemical transformation. Herein, we report dihydroazulene-vinylheptafulvene (DHA-VHF) based photoswitchable frustrated Lewis pairs (FLPs) for reversible hydrogen activation. The… read more here.

Keywords: based photoswitchable; dihydroazulene vinylheptafulvene; vinylheptafulvene; lewis pairs ... See more keywords
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The development of reaction kinetics for CO2 absorption into novel solvent systems: Frustrated Lewis pairs (FLPs)

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Published in 2020 at "Separation and Purification Technology"

DOI: 10.1016/j.seppur.2020.117450

Abstract: Abstract Frustrated Lewis Pairs (FLPs) comprising sterically hindered Lewis acids and bases were developed and kinetic parameters for the homogenous reaction between CO2 and FLP dissolved in bromobenzene were obtained by using the stopped-flow method… read more here.

Keywords: lewis pairs; hindered lewis; sterically hindered; pairs flps ... See more keywords
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Role of surface frustrated Lewis pairs on reduced CeO2(110) in direct conversion of syngas

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Published in 2020 at "Chinese Journal of Catalysis"

DOI: 10.1016/s1872-2067(20)63627-0

Abstract: Abstract Direct syngas conversion to light olefins on bifunctional oxide-zeolite (OX-ZEO) catalysts is of great interest to both academia and industry, but the role of oxygen vacancy (Vo) in metal oxides and whether the key… read more here.

Keywords: lewis pairs; conversion; role; syngas ... See more keywords
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P–H Functionalized Al/P-Based Frustrated Lewis Pairs in Dipolar Activation and Hydrophosphination: Reactions with CO2 and SO2

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Published in 2019 at "Organometallics"

DOI: 10.1021/acs.organomet.9b00346

Abstract: The P–H functionalized FLPs R(H)PC(AlBis2)═C(H)-CMe3 (1a, R = Bis; 1b, R = Mes; Bis = CH(SiMe3)2) combine the typical FLP properties based on Lewis acidic Al and basic P atoms with the reactivity of a… read more here.

Keywords: based frustrated; pairs dipolar; lewis pairs; hydrophosphination ... See more keywords
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Mechanistic Investigations of Reactions of the Frustrated Lewis Pairs (Triarylphosphines/B(C6F5)3) with Michael Acceptors.

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Published in 2017 at "Organic letters"

DOI: 10.1021/acs.orglett.6b03868

Abstract: Frustrated Lewis pair (FLP)-catalyzed reduction of Michael acceptors is a challenging reaction that proceeds with specific FLP structures. Kinetics and equilibrium of the reactions of two phosphines (Ar3P), namely tri(1-naphthyl)phosphine and tri(o-tolyl)phosphine, are reported with… read more here.

Keywords: lewis pairs; investigations reactions; mechanistic investigations; reactions frustrated ... See more keywords
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Mechanism of Heterolytic Hydrogen Splitting by Frustrated Lewis Pairs: Comparison of Static and Dynamic Models

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Published in 2019 at "ACS Catalysis"

DOI: 10.1021/acscatal.9b01137

Abstract: Free energy surfaces generated via ab initio molecular dynamics simulations for H2 activation reactions with intramolecular frustrated Lewis pairs (FLPs) point to a concerted (single-step) mechanism of H–H bond cleavage. Statistical analysis carried out for… read more here.

Keywords: heterolytic hydrogen; lewis pairs; mechanism heterolytic; hydrogen splitting ... See more keywords
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Hydrogen Activation by Frustrated and Not So Frustrated Lewis Pairs Based on Pyramidal Lewis Acid 9-Boratriptycene: A Computational Study

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Published in 2022 at "ACS Omega"

DOI: 10.1021/acsomega.2c06836

Abstract: Structural features and reactivity of frustrated Lewis pairs (FLPs) formed by pyramidal group 13 Lewis acids based on 9-bora and 9-alatriptycene and bulky phosphines PtBu3, PPh3, and PCy3 are considered at the M06-2X/def2-TZVP level of… read more here.

Keywords: hydrogen activation; frustrated lewis; hydrogen; heterolytic hydrogen ... See more keywords
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Interfacial frustrated Lewis pairs of CeO2 activate CO2 for selective tandem transformation of olefins and CO2 into cyclic carbonates.

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Published in 2019 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.9b03217

Abstract: Effective activation of CO2 is a prerequisite for efficient utili-zation of CO2 in organic synthesis. Precisely controlling the interfacial events of solids shows potential for activation. Herein, defect-enriched CeO2 with constructed interfacial frustrated Lewis pairs… read more here.

Keywords: ceo2 activate; lewis pairs; olefins co2; interfacial frustrated ... See more keywords
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Lewis Pairs as Highly Tunable Dynamic Crosslinks in Transient Polymer Networks.

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Published in 2019 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.9b07452

Abstract: Classical Lewis pairs (LPs) between unhindered electron-poor Lewis acids (LAs) and electron-rich Lewis bases (LBs) present an overlooked motif with tremendous potential as dynamic crosslinks in transient polymer networks (TPNs) for self-healing and stimuli-responsive applications.… read more here.

Keywords: lewis pairs; crosslinks transient; polymer networks; dynamic crosslinks ... See more keywords
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Quantifying the efficiency of CO2 capture by Lewis pairs† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c6sc05607e Click here for additional data file.

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Published in 2017 at "Chemical Science"

DOI: 10.1039/c6sc05607e

Abstract: A microfluidic strategy is used to assess the relative efficiency and thermodynamic parameters of CO2 binding by three Lewis acid/base combinations. read more here.

Keywords: co2 capture; lewis pairs; capture lewis; quantifying efficiency ... See more keywords