scholarly journals Parallels between Metal-Ligand Cooperativity and Frustrated Lewis Pairs

2019 ◽  
Vol 2019 (19) ◽  
pp. 2436-2442 ◽  
Author(s):  
Evi R. M. Habraken ◽  
Andrew R. Jupp ◽  
Maria B. Brands ◽  
Martin Nieger ◽  
Andreas W. Ehlers ◽  
...  
Keyword(s):  
Frustrated Lewis Pairs ◽  
Metal Ligand ◽  
Lewis Pairs

scholarly journals Metal–ligand multiple bonds as frustrated Lewis pairs for C–H functionalization

2012 ◽  
Vol 8 ◽  
pp. 1554-1563 ◽  
Author(s):  
Matthew T Whited
Keyword(s):  
Small Molecules ◽  
Metal Species ◽  
Frustrated Lewis Pairs ◽  
Acid Base ◽  
Base Pairs ◽  
Multiple Bonds ◽  
Inorganic Complexes ◽  
Cooperative Activation ◽  
Metal Ligand ◽  
Lewis Pairs

The concept of frustrated Lewis pairs (FLPs) has received considerable attention of late, and numerous reports have demonstrated the power of non- or weakly interacting Lewis acid–base pairs for the cooperative activation of small molecules. Although most studies have focused on the use of organic or main-group FLPs that utilize steric encumbrance to prevent adduct formation, a related strategy can be envisioned for both organic and inorganic complexes, in which "electronic frustration" engenders reactivity consistent with both nucleophilic (basic) and electrophilic (acidic) character. Here we propose that such a description is consistent with the behavior of many coordinatively unsaturated transition-metal species featuring metal–ligand multiple bonds, and we further demonstrate that the resultant reactivity may be a powerful tool for the functionalization of C–H and E–H bonds.

Bis(perchlorocatecholato)silane and Heteroleptic Bidonors: Hidden Frustrated Lewis Pairs by Ring Strain

2021 ◽  
Author(s):  
Deborah Hartmann ◽  
Sven Braner ◽  
Lutz Greb
Keyword(s):  
Ammonia Borane ◽  
Frustrated Lewis Pairs ◽  
Ring Strain ◽  
Frustrated Lewis Pair ◽  
Lewis Pairs

Bis(perchlorocatecholato)silane and bidentate N,N- or N,P-heteroleptic donors form hexacoordinated complexes. Depending on the ring strain and hemilability in the adducts, Frustrated Lewis pair reactivity with aldehydes and catalytic ammonia borane...

scholarly journals Supramolecular Systems Containing B–N Frustrated Lewis Pairs of Tris(pentafluorophenyl)borane and Triphenylamine Derivatives

2021 ◽  
Vol 03 (02) ◽  
pp. 174-183
Author(s):  
P. Chidchob ◽  
S. A. H. Jansen ◽  
S. C. J. Meskers ◽  
E. Weyandt ◽  
N. P. van Leest ◽  
...  
Keyword(s):  
Materials Science ◽  
Supramolecular Polymers ◽  
Frustrated Lewis Pairs ◽  
Paramagnetic Resonance ◽  
Donor And Acceptor ◽  
Donor Acceptor ◽  
Noncovalent Polymers ◽  
Electron Paramagnetic ◽  
Supramolecular Polymerization ◽  
Lewis Pairs

The introduction of a chemical additive to supramolecular polymers holds high potential in the development of new structures and functions. In this regard, various donor- and acceptor-based molecules have been applied in the design of these noncovalent polymers. However, the incorporation of boron–nitrogen frustrated Lewis pairs in such architectures is still rare despite their many intriguing properties in catalysis and materials science. The limited choices of suitable boron derivatives represent one of the main limitations for the advancement in this direction. Here, we examine the use of the commercially available tris(pentafluorophenyl)borane with various triphenylamine derivatives to create supramolecular B–N charge transfer systems. Our results highlight the importance of a proper balance between the donor/acceptor strength and the driving force for supramolecular polymerization to achieve stable, long-range ordered B–N systems. Detailed analyses using electron paramagnetic resonance and optical spectroscopy suggest that tris(pentafluorophenyl)borane displays complex behavior with the amide-based triphenylamine supramolecular polymers and may interact in dimers or larger chiral aggregates, depending on the specific structure of the triphenylamines.

Aromaticity can enhance the reactivity of P-donor/borole frustrated Lewis pairs

2019 ◽  
Vol 55 (5) ◽  
pp. 675-678 ◽  
Author(s):  
Jorge Juan Cabrera-Trujillo ◽  
Israel Fernández
Keyword(s):  
Frustrated Lewis Pairs ◽  
Key Factor ◽  
Novel Concept ◽  
Lewis Pairs

Herein we introduce a novel concept in FLP chemistry: aromaticity as the key factor enhancing the reactivity of FLPs.

Ring-opening of cyclopropanes by “frustrated Lewis pairs”

2010 ◽  
Vol 46 (47) ◽  
pp. 8947 ◽  
Author(s):  
Jason G. M. Morton ◽  
Meghan A. Dureen ◽  
Douglas W. Stephan
Keyword(s):  
Ring Opening ◽  
Frustrated Lewis Pairs ◽  
Lewis Pairs
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