Complexation of monosulfonated triphenylphosphine oxides with β-cyclodextrin: spectroscopic study and consequence on the behaviour of cyclodextrins in aqueous-phase organometallic catalysis
of various neutral phosphine containing copper(I) complexes exhibiting phosphorescence and TADF are easily achieved by solvent modification restricting intramolecular rotation or by modifying the L–X phosphine-sulfonate chelate. This concept is not limited to solvents as the addition of metallicsalts also led to the formation of original well-defined photoluminescent K2CuLX3 and KCuL2X2 cuprate complexes
通过限制分子内旋转的溶剂修饰或通过修饰L–X膦磺酸盐螯合物,可以轻松实现对各种具有磷光和TADF的中性磷化氢铜(I)配合物的调节。该概念不限于溶剂,因为添加金属盐还导致形成原始的明确定义的光致发光K 2 CuLX 3和KCuL 2 X 2铜酸盐配合物。
Thermodynamic insight into the origin of the inclusion of monosulfonated isomers of triphenylphosphine into the β-cyclodextrin cavity
Formation of inclusion complexes between the P-cyclodextrin and the potassium salt of o-, m-, and p-substituted monosulfonated triphenylphosphine derivatives was investigated in aqueous solution by NMR spectroscopy. Titration and continuous variation plots obtained from P-31 and H-1 NMR data indicate the formation of a 1:1 inclusion complex for the three phosphine isomers. T-ROESY NMR experiments show that in all cases a non-sulfonated aromatic ring was included into the hydrophobic cavity of beta-cyclodextrin from the secondary hydroxyl groups side. The standard enthalpy and entropy of the inclusion process were estimated from the temperature dependence of the association constant. All inclusion complexes were enthalpy stabilized, but highly entropy destabilized. (C) 2002 Elsevier Science Ltd. All rights reserved.
Alkylphosphonous Acids, Salts and Esters, Methods for the Production Thereof, and Use of the Same
申请人:Hill Michael
公开号:US20100190901A1
公开(公告)日:2010-07-29
The invention relates to alkylphosphonous acids, salts and esters of formula (I) A-P(═O)(OX)—H (I) wherein A is C
2
-C
20
alkyl, C
2
-C
20
alkylene, and C
8
-C
20
alkaryl are optionally substituted, and X is H, alkyl, aryl, alkylaryl, alkenyl, substituted alkyl, aryl, alkaryl, alkenyl, ammonium, primary, secondary, tertiary, quaternary alkyl and/or aryl ammonium, an alkali metal, an alkaline earth metal, a metal of the third and fourth main group and the second, fourth and eight sub-group or a metal of the lanthanoid group. The invention also relates to methods for producing same and to the uses of said compounds.
US8293938B2
申请人:——
公开号:US8293938B2
公开(公告)日:2012-10-23
Synthesis of non-symmetrically sulphonated phosphine sulphonate based Pd(ii) catalyst salts for olefin polymerisation reactions
作者:Timo M. J. Anselment、Carly E. Anderson、Bernhard Rieger、M. Bele Boeddinghaus、Thomas F. Fässler
DOI:10.1039/c1dt10372e
日期:——
2-(diphenylphosphino)benzenesulphonic acid was extensively studied. The non-symmetrically functionalised reaction products obtained, related to the widely applied water soluble phosphine ligands m,m,m-TPPTS and m,m-TPPDS, display chelating κ2-(P,O)-coordination to Pd(II) metal centres. Phase transfer reaction of rac-o,m-TPPDS as the potassium salt with 18-crown-6 and complexation to Pd(II) gives the novel