ISSN:
1573-1111
Keywords:
thermodynamic parameters
;
bulk liquid membrane transport
;
P2N2
;
crown ether
;
enthalpy change
;
stability constant
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The thermodynamic parameters for the interaction of Cu2+, Ni2+, Co2+, Cd2+, andAg+ with the new title ligand have been determined by titration calorimetry in 50% THF–methanol (V/V) at 25 °C.Ag+ exhibited remarkably higher complexation selectivity.Ag+ and several transition metal ions have been transportedusing this ligand as carrier in a bulk liquid membrane. CompetitiveAg+–M2+ transport studies have also beencarried out for the same system. In this membrane transport study, high transport of Ag+ was observed in both single and competitiveAg+–M2+ transport studies. The complexformation of N,N′-bis[o-(diphenylphosphino)benzylidene]ethylenediamine (P2N2) with silver,[Ag(P2N2)] (NO3), (1) is reported. Complex 1 has been characterized by X-ray crystallography. 1 ismonoclinic, space group P21/n (No. 14), with cell dimensionsa = 13.398(4) Å, b=12.577(5) Å, c = 21.521(4) Å, β =100.14(2) Å, V = 3570(2) Å3 and Z = 4.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1007911902950
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