One-Electron Bonds in Frustrated Lewis Pair TPB Ligands: Boron Behaving as a Lewis Base

2017 ◽  
Vol 56 (24) ◽  
pp. 6788-6792 ◽  
Author(s):  
Elena Kusevska ◽  
M. Merced Montero-Campillo ◽  
Otilia Mó ◽  
Manuel Yáñez
Keyword(s):  
Lewis Base ◽  
Frustrated Lewis Pair

Developing carbon Lewis base/boron Lewis acid frustrated Lewis pair chemistry derived from conjugated dienamines

Tetrahedron ◽  
2019 ◽  
Vol 75 (5) ◽  
pp. 571-579 ◽  
Author(s):  
Jennifer Möricke ◽  
Florian Rehwinkel ◽  
Tobias Danelzik ◽  
Constantin G. Daniliuc ◽  
Birgit Wibbeling ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Lewis Base ◽  
Frustrated Lewis Pair

When Chirality Meets “Buchwald-Type” Phosphines: Synthesis and Evaluation in Frustrated Lewis Pair-, Lewis Base- and Palladium-Promoted Asymmetric Catalysis

2016 ◽  
Vol 2016 (26) ◽  
pp. 4545-4553 ◽  
Author(s):  
Mickaël J. Fer ◽  
Joséphine Cinqualbre ◽  
Julien Bortoluzzi ◽  
Matthieu Chessé ◽  
Frédéric R. Leroux ◽  
...  
Keyword(s):  
Asymmetric Catalysis ◽  
Lewis Base ◽  
Frustrated Lewis Pair

Gold catalyzed hydrogenations of small imines and nitriles: enhanced reactivity of Au surface toward H2via collaboration with a Lewis base

2014 ◽  
Vol 5 (3) ◽  
pp. 1082-1090 ◽  
Author(s):  
Gang Lu ◽  
Peng Zhang ◽  
Dongqing Sun ◽  
Lei Wang ◽  
Kebin Zhou ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Lewis Base ◽  
Frustrated Lewis Pair

Au (111) surface can serve as a Lewis acid to couple with a Lewis base (e.g. imine or nitrile) to form the Au-coupled FLP (frustrated Lewis pair, left) which can cleave H2, further achieving hydrogenation of small imines and nitriles.

One-Electron Bonds in Frustrated Lewis Pair TPB Ligands: Boron Behaving as a Lewis Base

2017 ◽  
Vol 129 (24) ◽  
pp. 6892-6896 ◽  
Author(s):  
Elena Kusevska ◽  
M. Merced Montero-Campillo ◽  
Otilia Mó ◽  
Manuel Yáñez
Keyword(s):  
Lewis Base ◽  
Frustrated Lewis Pair

scholarly journals Design of Frustrated Lewis Pair in Defective TiO2 for Photocatalytic Non-Oxidative Methane Coupling

2022 ◽  
Author(s):  
Jiayu Ma ◽  
Qingqing Zhang ◽  
Ziyu Chen ◽  
Kai Kang ◽  
Lihan Pan ◽  
...  
Keyword(s):  
Dft Calculation ◽  
Mesoporous Structure ◽  
Electron Excitation ◽  
Lewis Base ◽  
Long Distance ◽  
Frustrated Lewis Pair ◽  
Oxidative Methane Coupling ◽  
Metal Doped ◽  
Hydrogenation Treatment

Abstract The efficient C-H polarization is the prerequisite for the low-temperature photocatalytic CH4 conversion, which however is restricted by the poor stretching ability of short-distanced lattice atoms. Herein, frustrated Lewis pair (FLP) composed of doped ion in TiO2 as Lewis acid (LA) and neighboring Ti-OH as Lewis base (LB) with a long distance (0.31-0.37 nm) were designed through DFT calculation and fabricated by hydrogenation treatment of metal-doped TiO2-SiO2 with macroporous-mesoporous structure. Benefitting from the long LA-LB distance and matched acid-base intensity, hydrogenated Ga-doped composite achieves superior C-H stretching with a high CH4 conversion rate (139 µmol g−1 h−1) to ethane. The photo-irradiation causes the electron excitation from Ga to Ti-OH according to the time-dependent DFT calculation and in situ EPR analysis, which promotes the formation and coupling of ·CH3. This work provides a key underpinning for regulating the characteristics of FLP for C-H activation and C-C coupling via light irradiation.

Electronic control in frustrated Lewis pair chemistry: adduct formation of intramolecular FLP systems with –P(C6F5)2 Lewis base components

2013 ◽  
Vol 42 (13) ◽  
pp. 4487 ◽  
Author(s):  
Annika Stute ◽  
Gerald Kehr ◽  
Constantin G. Daniliuc ◽  
Roland Fröhlich ◽  
Gerhard Erker
Keyword(s):  
Adduct Formation ◽  
Lewis Base ◽  
Electronic Control ◽  
Frustrated Lewis Pair

scholarly journals Recent Advances in Water-Tolerance in Frustrated Lewis Pair Chemistry

Synthesis ◽  
2018 ◽  
Vol 50 (09) ◽  
pp. 1783-1795 ◽  
Author(s):  
Michael Ingleson ◽  
Valerio Fasano
Keyword(s):  
Small Molecules ◽  
Lewis Acid ◽  
Lewis Acids ◽  
Short Review ◽  
Lewis Base ◽  
Small Molecule Activation ◽  
Significant Progress ◽  
Water Tolerance ◽  
Frustrated Lewis Pair ◽  
Main Challenge

A water-tolerant frustrated Lewis pair (FLP) combines a sterically encumbered Lewis acid and Lewis base that in synergy are able to activate small molecules even in the presence of water. The main challenge introduced by water comes from its reversible coordination to the Lewis acid which causes a marked increase in the Brønsted acidity of water. Indeed, the oxophilic Lewis acids typically used in FLP chemistry form water adducts whose acidity can be comparable to that of strong Brønsted acids such as HCl, thus they can protonate the Lewis base component of the FLP. Irreversible proton transfer quenches the reactivity of both the Lewis acid and the Lewis base, precluding small molecule activation. This short review discusses the efforts to overcome water-intolerance in FLP systems, a topic that in less than five years has seen significant progress.1 Introduction2 Water-Tolerance (or Alcohol-Tolerance) in Carbonyl Reductions3 Water-Tolerance with Stronger Bases4 Water-Tolerant Non-Boron-Based Lewis Acids in FLP Chemistry5 Conclusions

Intramolecular cooperativity in frustrated Lewis pairs

2016 ◽  
Vol 52 (64) ◽  
pp. 9949-9952 ◽  
Author(s):  
Leif A. Körte ◽  
Sebastian Blomeyer ◽  
Shari Heidemeyer ◽  
Andreas Mix ◽  
Beate Neumann ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Lewis Base ◽  
Frustrated Lewis Pairs ◽  
Frustrated Lewis Pair ◽  
Fast Exchange ◽  
Lewis Pairs

The doubly Lewis-acid functionalised aniline PhN[(CH2)3B(C6F5)2]2 features two competing boron functions in fast exchange for binding to the central Lewis base. In contrast to the mono acid-functionalised PhMeN[(CH2)3B(C6F5)2], it is an active frustrated Lewis pair.

scholarly journals Design and reactions of a carbon Lewis base/boron Lewis acid frustrated Lewis pair

2017 ◽  
Vol 375 (2101) ◽  
pp. 20170015 ◽  
Author(s):  
Jennifer Möricke ◽  
Birgit Wibbeling ◽  
Constantin G. Daniliuc ◽  
Gerald Kehr ◽  
Gerhard Erker
Keyword(s):  
Sulfur Dioxide ◽  
Lewis Acid ◽  
Lewis Base ◽  
Addition Reactions ◽  
Acid Interaction ◽  
Frustrated Lewis Pair ◽  
Hb C

The conjugated dienamine 4 selectively adds Piers' borane [HB(C 6 F 5 ) 2 ] to give the enamine/borane system 5 , which features a boratirane structure by internal enamine carbon Lewis base to boron Lewis acid interaction. Compound 5 behaves as a C/B frustrated Lewis pair and undergoes typical addition reactions to benzaldehyde, several nitriles and to sulfur dioxide. This article is part of the themed issue ‘Frustrated Lewis pair chemistry’.

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