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Langmuir–Schäfer Films of Functional Amphiphilic Nickel(II) and Zinc(II) Schiff Base Complexes

  1. Santo Di Bella1,
  2. Giuseppe Consiglio2,
  3. Salvatore Sortino1,
  4. Gabriele Giancane3,
  5. Ludovico Valli3

Article first published online: 16 OCT 2008

DOI: 10.1002/ejic.200800736

Issue

European Journal of Inorganic Chemistry

European Journal of Inorganic Chemistry

Volume 2008, Issue 33, pages 5228–5234, November 2008

Additional Information

How to Cite

Di Bella, S., Consiglio, G., Sortino, S., Giancane, G. and Valli, L. (2008), Langmuir–Schäfer Films of Functional Amphiphilic Nickel(II) and Zinc(II) Schiff Base Complexes. Eur. J. Inorg. Chem., 2008: 5228–5234. doi: 10.1002/ejic.200800736

Author Information

  1. 1

    Dipartimento di Scienze Chimiche, Università di Catania, 95125 Catania, Italy

  2. 2

    Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria, Università di Catania, 95125 Catania, Italy

  3. 3

    Dipartimento di Ingegneria dell′Innovazione, Università degli Studi del Salento, 73100 Lecce, Italy

Publication History

  1. Issue published online: 11 NOV 2008
  2. Article first published online: 16 OCT 2008
  3. Manuscript Received: 24 JUL 2008

Funded by

  • Ministero dell'Istruzione, dell'Università e della Ricerca. Grant Numbers: 2006034018, 20066031909

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Keywords:

  • Multilayers;
  • Fluorescence;
  • Schiff bases;
  • Nickel;
  • Zinc

Abstract

The synthesis of novel functional amphiphilic dipodal NiII (1) and ZnII (2) Schiff base complexes and the preparation/characterization and optical properties of Langmuir–Schäfer (LS) multilayer films are reported. The existence of stacked 3D aggregates is observed for all films, as established by the combination of reflection spectroscopy and Brewster angle microscopy. Although aggregate formation does not involve major electronic changes, as evidenced by analysis by absorption spectroscopy, fluorescence emission is much more sensitive to the chemical environment, and complete quenching is observed in the multilayer LS aggregates. However, in the limit of negligible interchromophore interactions, achieved by means of mixed LS multilayer films the fluorescence is restored by using arachidic acid as a spacer diluent, and LS layers of 2 behave as related self-assembled monolayers. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

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