Lewis acid-base adductStabilityHysteresis-lessSince hole transport materials (HTMs) play a significant role in enhancing the power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs), which are the key factors for their commercialization, an effective design strategy is ...
Lewis acid-base adduct: compound or ion that contains a coordinate covalent bond between a Lewis acid and a Lewis base Lewis base: any species that can donate a pair of electrons and form a coordinate covalent bond ligand: molecule or ion that surrounds a transition metal and forms a complex...
(C,H-free) precursor to heteroepitaxial GaN by ultrahigh-vacuum chemical vapor deposition. A volatile monomeric Lewis acid-base adduct of 2 with trimethylamine, Cl2GaN3·N(CH3)3(3), has also been prepared and utilized to grow high-quality GaN on Si and basal plane sapphire substr...
Treatment of 1 with mono and multidentate phosphorus Lewis bases afforded the Lewis acid–base adducts with the ortho-carbon atom of the coordinated arene ring. Similar reactivity was observed upon treatment with N-heterocyclic carbenes; however, adduct formation occurred at both ortho- and para-...
Another example of a Lewis acid-base adduct is a common reagent in synthesis, the boron trifluoride-diethyl ether adduct, BF3O(C2H5)2. Since fluorine is the most electronegative element, the boron atom in BF3 is quite positive. Lone pairs on the oxygen of the diethyl ether are attracted to...
B is the Lewis base, which has an electron pair to donate, represented by (:B). When the electrons are transferred from the Lewis base (:B) to the Lewis acid (A), a covalent bond is formed to create the adduct, AB. To unlock this lesson you must be a Study.com Member. Create...
TheLewisbaseobviouslyincludesalltheBronstedbases,buttheLewisaciddoesnotagreewiththeBronstedacid,suchasHCl,HNO3,isBronstedacid,butnotLewisacid,buttheacidbaseadduct CommonLewisbases: 1.negativeion:halogenionsandhydroxylions,alkoxyions,olefinandaromaticcompounds ...
The isolated product of this activation is either the potassium silyl complex [K(18-crown-6)SiPh3] or [K(18-crown-6)(thf)2][pinB(SiMe2Ph)2], the formal Lewis acid/base adduct of [K(18-crown-6)SiMe2Ph] with pinB-SiMe2Ph. Both complexes react essentially as sources of ...
The Lewis acid/base adducts [X3M·N(SnMe3)3] (1a: M = Al, X = Cl; 2a: M = Ga, X = Cl; 2b: M = Ga, X = Br; 3a: M = In, X = Cl; 3b: M = In, X = Br) and [Cl2MeM·N(SnMe3)3] (1b: M = Al, 2c: M = Ga) were prepared by the 1 ∶ 1 mole ...
Global Lewis acidity considers the thermodynamics (ΔH and ΔG) of adduct formation between the Lewis acid and base; effective Lewis acidity relates the effect of the Lewis acid on the base to a spectroscopic change; intrinsic Lewis acidity looks at properties of the free Lewis acid.46 The ...