4-Mercaptophenyldiphenylphosphine as linker to immobilize Pd onto the surface of magnetite nanoparticles. Excellent catalytic efficiency of the system after partial linker removal
New copper selenium clusters with a sulfur functionalised ligand shell
作者:Olaf Fuhr、Anthony Meredith、Dieter Fenske
DOI:10.1039/b205057a
日期:2002.11.12
We introduce two new sulfur functionalised phosphines P(C6H4SMe)3L1 and PPh2C6H4SMe L2. Using them as ligands, four new copper selenium clusters were synthesized. The compounds [Cu15Se3(SePh)9(P(C6H4SMe)3)6]
1, [Cu22Se6(SePh)10(PPh2C6H4SMe)8]
2, [Cu20Se(SePh)12(OAc)6(PPh2C6H4SMe)2]
3 and [Cu38Se4(SePh)24(OAc)6(PPh2C6H4SMe)4]
4 were characterized by single crystal X-ray analysis and demonstrate the coordination of the phosphines through the phosphorus atoms. The thiomethyl groups of the ligands are not coordinated to any metal centre, but are located on the surface of the organic shell of the cluster molecules. This may provide an opportunity for further reactions between the functionalised clusters and metal atoms or surfaces. Furthermore the inner cluster cores show arrangements of copper and selenium atoms not yet found in these kinds of compounds.
Thiophosphine compounds and methods of making polymerizable compositions containing them and their use for making ophthalmic lenses
申请人:Wanigatunga Sirisoma
公开号:US20050107579A1
公开(公告)日:2005-05-19
Thiophosphine compounds (also named phosphine sulfide compounds) and their use for making polymerizable compositions which after polymerization give optically transparent articles, such as ophthalmic lenses, having improved mechanical and optical properties and in particular having an improved UV cut.
THIOPHOSPHINE COMPOUNDS AND METHODS OF MAKING POLYMERIZABLE COMPOSITIONS CONTAINING THEM AND THEIR USE FOR MAKING OPHTHALMIC LENSES
申请人:Wanigatunga Sirisoma
公开号:US20070232834A1
公开(公告)日:2007-10-04
Thiophosphine compounds (also named phosphine sulfide compounds) and their use for making polymerizable compositions which after polymerization give optically transparent articles, such as ophthalmic lenses, having improved mechanical and optical properties and in particular having an improved UV cut.
[EN] THIOPHOSPHINE COMPOUNDS AND METHOD OF MAKING POLYMERISABLE COMPOSITIONS CONTAINING THEM AND THEIR USE FOR MAKING OPHTALMIC LENSES<br/>[FR] COMPOSES DE THIOPHOSPHINE ET PROCEDE DE FABRICATION DE COMPOSITIONS POLYMERISABLES LES CONTENANT ET LEUR UTILISATION POUR FABRIQUER DES LENTILLES OPHTALMIQUES
申请人:ESSILOR INT
公开号:WO2004085447A3
公开(公告)日:2004-11-11
THIOPHOSPHINE COMPOUNDS AND METHOD OF MAKING POLYMERISABLE COMPOSITIONS CONTAINING THEM AND THEIR USE FOR MAKING OPHTALMIC LENSES
申请人:ESSILOR INTERNATIONAL COMPAGNIE GENERALE D'OPTIQUE