Palladium(II)/beta-diketonate complexes containing the enolates of N-acetyl-3-acyltetramic acids - Crystal structure of the Lewis base adduct, [Pd(py)(4)](abta)(2)

Gavrielatos, E; Athanasellis, G; Heaton, BT; Steiner, A; Bickley, JF; Igglessi-Markopoulou, O; Markopoulos, J

dc.contributor.author	Gavrielatos, E	en
dc.contributor.author	Athanasellis, G	en
dc.contributor.author	Heaton, BT	en
dc.contributor.author	Steiner, A	en
dc.contributor.author	Bickley, JF	en
dc.contributor.author	Igglessi-Markopoulou, O	en
dc.contributor.author	Markopoulos, J	en
dc.date.accessioned	2014-03-01T01:53:09Z
dc.date.available	2014-03-01T01:53:09Z
dc.date.issued	2003	en
dc.identifier.issn	0020-1693	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/26874
dc.subject	palladium	en
dc.subject	O ligands	en
dc.subject	NMR spectroscopy	en
dc.subject	tautomerism	en
dc.subject	beta-diketonates	en
dc.subject.classification	Chemistry, Inorganic & Nuclear	en
dc.title	Palladium(II)/beta-diketonate complexes containing the enolates of N-acetyl-3-acyltetramic acids - Crystal structure of the Lewis base adduct, [Pd(py)(4)](abta)(2)	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	Progressive displacement of acac from [Pd(acac)(2)] occurs on reaction with different tetramic acids (HL = Hata, Habta) to give [Pd(acac)(eta(2)-L)] and [Pd(eta(2)-L)(2)] but, when HL = Haceta, only [Pd(acac)(eta(2)-L)] is formed, even when the ratio of Pd-HL is 1:4; reaction of all these tetramic acids with an aqueous solution of K-2[PdCl4] gives [Pd(eta(2)-L)(2)]. In solution, NMR studies in non polar solvents show that there is only one isomer of [Pd(acac)(eta(2)-L)] whereas there are usually two isomers of [Pd(eta(2)-L)(2)] which are probably due to the presence of cis- and trans-isomers of the complex as a result of both the enolate ligands adopting a 0,O'-mode of coordination via the functionalities associated with C-4 and the acyl group at C-3 in the pyrrolidine ring. In pyridine solution, [pd(eta(2)-abta)(2)] forms a Lewis base adduct, [Pd(py)(4)](abta)(2), which has been characterised by X-ray analysis and shown to contain a square-planar Pd(py)(4)-group with trans-, monodentate, weakly bonded abta groups. (C) 2003 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	INORGANICA CHIMICA ACTA	en
dc.identifier.isi	ISI:000184441200004	en
dc.identifier.volume	351	en
dc.identifier.spage	21	en
dc.identifier.epage	26	en