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Ketiminesynthesis in the coordinationsphere of thallium (I)

AuthorsFernández, Eduardo J.; Laguna, Antonio ; Lasanta, Tania; López-de-Luzuriaga, José M.; Montiel, Manuel; Olmos, M. Elena
Issue Date2010
CitationInorganica Chimica Acta 363(9): 1965-1969 (2010)
Abstract[AuTl(C6F5)2(en)] (en = ethylenediamine) reacts with cyclic ketones as cyclopentanone (Cy5 O), cyclohexanone (Cy6 O) or cycloheptanone (Cy7 O) in 1:1 or 1:2 molar ratio leading to products of stoichiometry [AuTl(C6F5)2{Cyx N(CH2)2NH2}] (x = 5 1, 6 2 or 7 3), or [AuTl(C6F5)2{Cyx N(CH2)2N Cyx}] (x = 5 4, 6 5 or 7 6). Addition of ethylenediamine to the ketimine complexes in chloroform regenerates [AuTl(C6F5)2(en)], the starting material, and the free ketimines, as their NMR and mass spectra evidenced. The ketimine complexes display luminescence in solid state at room temperature and at 77 K at higher wavelengths than the diamine starting product (505 nm). The excited states responsible for this behaviour are assigned to orbitals due to the gold–thallium interactions.
Identifiersdoi: 10.1016/j.ica.2009.01.045
issn: 0020-1693
Appears in Collections:(ICMA) Artículos
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