Suitable ionic groups include onium ions such as ammonium, phosphonium
, or sulfonium derivatives of aliphatic, aromatic, oraryl-aliphatic amines, phosphines, and sulfides.
-based tetrakis dibenzoylmethane Eu(III) and Sm(III) complexes: synthesis, crystal structure and photoluminescence properties in a weakly coordinating phosphonium
In previous study, the clays with the ammonium based modifier have been used extensively in PVDF nanocomposite membranes but the behavior of nanocomposite membrane with phosphonium
based clay has not been studied.
Banerjee, "Applicability of Cuckoo Search Algorithm for the Prediction of Multicomponent Liquid-Liquid Equilibria for Imidazolium and Phosphonium
Based Ionic Liquids," Industrial and Engineering Chemistry Research, vol.
The TBP can nucleophilically attack one of the sulfur atoms of the disulfide bond to form transient species with phosphonium
and thioxides groups.
Counter to the standard practice of allowing scale to form and relying on a chelating option or dissolver for removal, the new Scaletreat FeS prevents scale formation in the first place, and the resultant damage, at considerably lower dosages than existing chemistries, such as THPS (tetrakis hydroxymethyl phosphonium
sulphate) and Acrolein, said the company in a press release.
Our efforts also lead to develop phosphonium
salt methodology [39,77] and other compounds summarized as follows:
The use of phosphonium
reagents for the organic modification of montmorillonite for the preparation of polystyrene-organoclay and rubber nanocomposites was already reported [31, 32].
Generally, the cationic groups could be amino, ammonium, sulphonium or phosphonium
Synthesis and antimicrobial activity of modified poly(glycidyl methacrylate-co-2hydroxyethyl methacrylate) derivatives with quaternary ammonium and phosphonium
Stephan's presentation was titled "From Frustrated Lewis Pairs to Electrophilic Phosphonium
Cations: Metal-free Approaches to Hydrogenation Catalysis.
Cationic head groups include imidazolium, pyridinium, pyrrolidinium, morpholinium, piperidium, quinolinium, quaternary ammonium, and quaternary phosphonium
moieties; anionic head groups include tetrafluoroborate (B[F.