5032-90-6Relevant articles and documents
Dramatic increases in the lifetime of the Er3+ ion in a molecular complex using a perfluorinated imidodiphosphinate sensitizing ligand
Mancino, Gaetano,Ferguson, Andrew J.,Beeby, Andrew,Long, Nicholas J.,Jones, Tim S.
, p. 524 - 525 (2005)
Dramatic increases in the luminescent lifetime of the Er3+ ion in a molecular complex have been observed by chelating the rare-earth ion with a perfluorinated imidodiphosphinate sensitizing ligand, F-tpip. For solution, powder, and evaporated t
Preparation method of sensitizing agent HF20-tpip for visible and infrared emission lanthanide elements
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Paragraph 0009; 0030-0031; 0035-0036; 0039-0040, (2017/09/01)
The invention discloses a preparation method of a sensitizing agent HF20-tpip for visible and infrared emission lanthanide elements. The method includes: taking bromopentafluorobenzene as a starting material, performing Grignard reaction with elementary magnesium in tetrahydrofuran solvent to obtain bromopentafluorobenzene magnesium Grignard reagent solution, directly performing reaction with phosphorus trichloride at a low temperature under nitrogen protection to prepare bis-(pentabromobenzyl)phosphoric chloride, and performing high-vacuum distillation, separation and purification to obtain high-purity bis-(pentabromobenzyl)phosphoric chloride; performing amination reaction with hexamethyldisilazane, and directly adopting an oxidant for oxidation reaction to obtain N-(P,P-bis(pentafluobenzoyl))-P,P-p-(di(pentafluorophenyl)phosphinimidic acid crude product (HF20-tpip, for short). The preparation method is mild in reaction condition, simple and convenient to operate and free of silica gel columns, high-yield high-purity HF20-tpip can be obtained only by adoption of a conventional refining method, and the method is suitable for industrial production.
Electronic Effects in Asymmetric Catalysis: Structural Studies of Precatalysts and Intermediates in Rh-Catalyzed Hydrogenation of Dimethyl Itaconate and Acetamidocinnamic Acid Derivatives Using C2-Symmetric Diarylphosphinite Ligands
RajanBabu,Radetich, Branko,You, Kamfia K.,Ayers, Timothy A.,Casalnuovo, Albert L.,Calabrese, Joseph C.
, p. 3429 - 3447 (2007/10/03)
Enantioselectivity of Rh(I)-catalyzed asymmetric hydrogenation of dehydroamino acid derivatives and dimethyl itaconate can be enhanced by the appropriate choice of substituents on the aromatic rings of vicinal diarylphosphinites derived from carbohydrates
