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Synthesis and molecular structures of palladium(II) metalated 2-phenylpyridine complexes [PdCl(pyC6H4)L] containing amino- or acetylamino-pyridine co-ligands

AuthorsAl-Jibori, Subhi; Laguna, Mariano ; Luquin, Asunción; Hogarth, Graeme
Crystal structure
Issue Date2016
CitationInorganica Chimica Acta 450: 50-56 (2016)
AbstractA number of cyclometalated palladium(II) complexes [PdCl(pyC6H4)(L)] containing amino-pyridine or acetylamino-pyridine co-ligands (L) have been prepared from the reaction of [Pd(pyC6H4)(μ-Cl)]2 with two equivalents of these ligands. Crystal structures of four examples have been carried out, each showing a distorted square planer geometry around palladium with the amino- or acetylamino-pyridine ligand being coordinated via nitrogen atom and lying almost perpendicular to the square-plane. Similarly, [PdCl(pyC6H4)(κ1-dppmO)] and [PdCl(pyC6H4)(κ1-dppeO)] result from reactions of [Pd(C6H4py)(μ-Cl)]2 with Ph2PCH2P(O)PPh2 (dppmO) and Ph2PCH2CH2P(O)PPh2 (dppeO) respectively. Here the phosphine ligand is attached via only phosphorus, however, removal of the chloride upon addition of AgNO3 lead to the formation of [Pd(pyC6H4)(κ2-dppmO)][NO3] and [Pd(pyC6H4)(κ2-dppeO)][NO3] in which the ligands are believed to bind in a chelate fashion.
Identifiersdoi: 10.1016/j.ica.2016.04.046
issn: 0020-1693
Appears in Collections:(ISQCH) Artículos
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