Main Group Lewis Acid/Base-Stabilised Phosphanylboranes

2007 ◽  
Vol 2007 (15) ◽  
pp. 2136-2143 ◽  
Author(s):  
Ariane Adolf ◽  
Manfred Zabel ◽  
Manfred Scheer
Keyword(s):  
Lewis Acid ◽  
Main Group ◽  
Acid Base

Lewis Acid – Base Interactions Between Bis-π-cyclopentadienyl Tungsten and Molybdenum Dihydrides, Cp2MH2, and some Main Group III Moieties

1971 ◽  
Vol 49 (15) ◽  
pp. 2504-2507 ◽  
Author(s):  
A. Storr ◽  
B. S. Thomas
Keyword(s):  
Lewis Acid ◽  
Lewis Acids ◽  
Benzene Solution ◽  
Main Group ◽  
Acid Base ◽  
Group Iii ◽  
Lewis Bases

Combination of the Lewis bases Cp2MH2 (where M = W or Mo) with the Group III Lewis acids AlR3 (where R = Me, Et, or Ph) and AlMe2H has yielded a series of 1:1 complexes of the type Cp2MH2•AlR3. A number of the complexes undergoes a slow elimination of hydrogen or alkane in benzene solution. Attempts to isolate mixed hydride adducts of the type, Cp2MH2•M′H3 (where M′ = Al or Ga), were unsuccessful.

scholarly journals Crystal structure of an ordered [WOF5]− salt: (1,10-phen-H)[WOF5] (1,10-phen = 1,10-phenanthroline)

2020 ◽  
Vol 76 (8) ◽  
pp. 1345-1348 ◽  
Author(s):  
Douglas Turnbull ◽  
Michael Gerken
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Lewis Acid ◽  
Crystal Packing ◽  
Main Group ◽  
Bond Valence ◽  
Donor Ligands ◽  
Acid Base ◽  
Hydrolysis Of

Crystals of 1,10-phenanthrolinium pentafluoridooxidotungstate(VI), (1,10-phen-H)[WOF5] (1,10-phen = 1,10-phenanthroline, C12H8N2), were obtained upon hydrolysis of WF6(1,10-phen) in CH3CN at 193 K. The (1,10-phen-H)[WOF5] salt contains a rare example of a [WOF5]− anion in which the oxygen and fluorine atoms are ordered. This ordering was verified by bond-valence determinations and structural comparisons with [Xe2F11][WOF5] and Lewis acid-base adducts of WOF4 with main-group donor ligands. The crystal packing is controlled by N—H...F hydrogen bonding that is directed exclusively to the axial F atom as a result of its increased basicity caused by the trans influence of the oxido ligand.

Radicals derived from Lewis acid/base pairs

2019 ◽  
Vol 48 (13) ◽  
pp. 3454-3463 ◽  
Author(s):  
Liu Leo Liu ◽  
Douglas W. Stephan
Keyword(s):  
Lewis Acid ◽  
Lewis Acids ◽  
Main Group ◽  
Acid Base ◽  
Base Pairs ◽  
Donor And Acceptor ◽  
Acceptor Molecules

While conventional approaches to stabilizing main group radicals have involved the use of Lewis acids or bases, this tutorial review focuses on new avenues to main group radicals derived from combinations of donor and acceptor molecules.

Polymerization of Polar Monomers Mediated by Main-Group Lewis Acid–Base Pairs

2018 ◽  
Vol 118 (20) ◽  
pp. 10551-10616 ◽  
Author(s):  
Miao Hong ◽  
Jiawei Chen ◽  
Eugene Y.-X. Chen
Keyword(s):  
Lewis Acid ◽  
Main Group ◽  
Acid Base ◽  
Base Pairs ◽  
Polar Monomers

Solvation and redox properties of [Co(en)3]3+-[Co(en)3]2+ system

1980 ◽  
Vol 45 (2) ◽  
pp. 335-338 ◽  
Author(s):  
Adéla Kotočová ◽  
Ulrich Mayer
Keyword(s):  
Hydrogen Bond ◽  
Lewis Acid ◽  
Specific Interaction ◽  
Redox Properties ◽  
Solvation Effect ◽  
Interacting Particles ◽  
Acid Base ◽  
Polar Solvents ◽  
Oxidation Reduction ◽  
Solvent Molecules

The solvation effect of a number of nonaqueous polar solvents was studied on the oxidation-reduction properties of the [Co(en)3]3+-[Co(en)3]2+ system. Interactions of these ions with the solvent molecules are discussed in terms of their coordination, which is accompanied by a specific interaction of the Lewis acid-base type, namely formation of a hydrogen bond between the interacting particles. This is the main controlling factor of the redox properties of the studied system.

Chalcogen versus Dative Bonding in [SF3]+ Lewis Acid–Base Adducts: [SF3(NCCH3)2]+, [SF3(NC5H5)2]+, and [SF3(phen)]+ (phen = 1,10-phenanthroline)

2021 ◽  
Vol 60 (6) ◽  
pp. 3893-3901
Author(s):  
Douglas Turnbull ◽  
Praveen Chaudhary ◽  
Paul Hazendonk ◽  
Stacey D. Wetmore ◽  
Michael Gerken
Keyword(s):  
Lewis Acid ◽  
Acid Base

scholarly journals Lewis acid / Base-free Strategy for the Synthesis of 2-Arylthio and Selenyl Benzothiazole / Thiazole and Imidazole

2021 ◽  
Vol 27 (1) ◽  
pp. 17-23
Author(s):  
Guniganti Balakishan ◽  
Gullapalli Kumaraswamy ◽  
Vykunthapu Narayanarao ◽  
Pagilla Shankaraiah
Keyword(s):  
Lewis Acid ◽  
Bond Formation ◽  
Acid Base ◽  
Mechanistic Pathway ◽  
Wide Range ◽  
Acid And Base ◽  
Lewis Acid And Base ◽  
Sulfur Bond

Abstract A Cu(II)-catalyzed Csp2-Se and Csp2-Sulfur bond formation was achieved with moderate to good yields without the aid of Lewis acid and base. The reaction is compatible with a wide range of heterocycles such as benzothiazole, thiazole, and imidazole. Also, this typical protocol is found to be active in thio-selenation via S-H activation. Additionally, we proposed a plausible mechanistic pathway involving Cu(III) putative intermediate.

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