Ketimine synthesis in the coordination sphere of thallium (I)
- Fernández, E.J. 1
- Laguna, A. 2
- Lasanta, T. 1
- López-de-Luzuriaga, J.M. 1
- Montiel, M. 1
- Elena Olmos, M. 1
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1
Universidad de La Rioja
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2
Instituto de Nanociencia y Materiales de Aragón
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ISSN: 0020-1693
Ano de publicación: 2011
Volume: 363
Número: 9
Páxinas: 1965-1969
Tipo: Artigo
beta Ver similares en nube de resultadosOutras publicacións en: Inorganica Chimica Acta
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Resumo
[AuTl(C6F5)2(en)] (en = ethylenediamine) reacts with cyclic ketones as cyclopentanone (Cy5{double bond, long}O), cyclohexanone (Cy6{double bond, long}O) or cycloheptanone (Cy7{double bond, long}O) in 1:1 or 1:2 molar ratio leading to products of stoichiometry [AuTl(C6F5)2{Cyx{double bond, long}N(CH2)2NH2}] (x = 5 1, 6 2 or 7 3), or [AuTl(C6F5)2{Cyx{double bond, long}N(CH2)2N{double bond, long}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. © 2009 Elsevier B.V. All rights reserved.