Organic Pollutants in Water

Mixed Phosphine−Phosphine Oxide Ligands

“…190 Methanol can also be carbonylated to methyl acetate in the presence of dppeO-Rh catalysts. 191 If the process is run in the presence of EtOH, a mixture of AcOMe and AcOEt is obtained. In terms of the high catalytic activity, selectivity, and mechanistic features, the Rh-BPMO-catalyzed synthesis of esters from alcohols and CO is closely related to the aforementioned MeOH-to-AcOH process.…”

“…In terms of the high catalytic activity, selectivity, and mechanistic features, the Rh-BPMO-catalyzed synthesis of esters from alcohols and CO is closely related to the aforementioned MeOH-to-AcOH process. 191…”

Porous organic polymers as a promising platform for efficient capture of heavy metal pollutants in wastewater

“…Industry is to blame for the annual global release of tons of various organic and inorganic pollutants including pesticides, fertilizers, hydrocarbons, phenols, plasticizers, biphenyls, detergents, oils, greases, pharmaceuticals, heavy metals and other contaminants, with an estimated 80% of wastewater discharged to water bodies with no prior treatment. 2,3 Heavy metal pollution in water sources has been a major problem faced by society throughout its development. The presence of these elements in the environment in excess is a direct and indirect result of human activities, 4 mainly from industrialization, mining extraction, nuclear power, textiles or battery production, as well as from natural sources such as soil erosion or volcanic activities to name but a few.…”

“…The G⊂H system's fluorescence was quickly extinguished upon the addition of Hg 2+ based on the static quenching mechanism due to the formation of the non-luminous ground state complex G⊂H@Hg 2+ due to the close coordination effect between the CvS sulfur atom and Hg 2+ , giving the probe G⊂H the advantages of convenient, selective, anti-interference, sensitive detection, and quick removal of Hg 2+ . To effectively recover G⊂H without losing activity, G⊂H@Hg might also be simply treated with Na 2 S. 200 With the help of an AIEgen-bridged quaternary ammonium guest, Dai and colleagues reported the creation of a fluorescent supramolecular polymer based on a thymine-modified [2] biphenyl-extended version of a pillarene host. They addressed its straightforward application for the fluorescent detection of the Hg 2+ heavy metal ion with a quick response and high selectivity as well as for the effective removal of Hg 2+ with a rapid adsorption rate.…”

New Diphosphine Ligands Containing Ethyleneglycol and Amino Alcohol Spacers for the Rhodium-Catalyzed Carbonylation of Methanol

“…[9±12] One of the most important classes of these active rhodium complexes is based on simple phosphine ligands such as PEt 3 , [13] or diphosphine ligands of the type PPh 2 ÀCH 2 ÀCH 2 ÀPPh 2 . [14] More recently, bidendate phosphorus ± sulfur, phosphorus ± oxygen and phosphorus ± nitrogen ligands such as PPh 2 À CH 2 À P(S)Ph 2 , [12] PPh 2 À CH 2 À P(O)Ph 2 , [15] and PPh 2 À CH 2 À P(NPh)Ph 2 [11] have been shown to produce efficient catalysts with [{Rh(CO) 2 Cl} 2 ].…”