Complexation Behavior of Phosphate and Phosphazene Derivatives Containing Three or Six Benzo-15-crown-5 Cavities

Autor:	Roger De Jaeger, Christelle Mouveaux, Joëlle Levalois-Grützmacher
Rok vydání:	2002
Předmět:	chemistry.chemical_classification Tris Organic Chemistry Inorganic chemistry Salt (chemistry) Ether Alkali metal Biochemistry Medicinal chemistry Inorganic Chemistry chemistry.chemical_compound chemistry 15-Crown-5 Chelation Selectivity Phosphazene
Zdroj:	Phosphorus, Sulfur, and Silicon and the Related Elements. 177:1541-1544
ISSN:	1563-5325 1042-6507
DOI:	10.1080/10426500212299
Popis:	Tris(benzocrown ether)s 2a , b X = P(NMeN=CH-B15C5) 3 (X=O, S) and tri[bis(benzocrown ether)] [N=P(NMeN=CH-B15C5) 2 ] 3 3 strongly chelate with alkali metal salts and their efficiency and selectivity in binding these salts are compared with those of the monomeric crown 1 . Data obtained from salt distribution equilibrium in water-chloroform show these ligands to be excellent extracting agents, especially for K + and Rb + . Furthermore, compound 3 is able to transport K + selectively.
Databáze:	OpenAIRE
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