Issue 32, 2012
From the journal:

Dalton Transactions

Metal-directed assembly of chiral bis-Zn(ii) Schiff base structures†

Martha V. Escárcega-Bobadilla,a   Daniele Anselmo,a   Sander J. Wezenberg,a   Eduardo C. Escudero-Adán,a   Marta Martínez Belmonte,a   Eddy Martina  and  Arjan W. Kleij*ab  

* Corresponding authors

a Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, Tarragona, Spain
E-mail: akleij@iciq.es
Fax: +34 977920224
Tel: +34 977920247

b Catalan Institute for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, Barcelona, Spain

Abstract

Tetra-Schiff bases derived from (chiral) bis-salphen ligand scaffolds furnish, upon metalation with appropriate metal reagents, their multinuclear structures with associated Zn(OAc)2 or Zn(OH)2 fragments. The tendency of retaining these salts was investigated using four different (chiral) bis-salphen scaffolds. The presence of the additional Zn ions was supported by NMR studies, mass determinations and X-ray crystallography showing in two cases the possible mode of coordination within these multinuclear structures. In one case, dimerization of the Zn3 complex leads to a unique hexanuclear Zn6 complex being a mixture of diastereoisomeric complexes as revealed by NMR spectroscopy.

Graphical abstract: Metal-directed assembly of chiral bis-Zn(ii) Schiff base structures

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Article information

DOI
https://doi.org/10.1039/C2DT30642E
Article type
Paper
Submitted
21 Mar 2012
Accepted
26 Jun 2012
First published
28 Jun 2012

Dalton Trans., 2012,41, 9766-9772

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Metal-directed assembly of chiral bis-Zn(II) Schiff base structures

M. V. Escárcega-Bobadilla, D. Anselmo, S. J. Wezenberg, E. C. Escudero-Adán, M. Martínez Belmonte, E. Martin and A. W. Kleij, Dalton Trans., 2012, 41, 9766 DOI: 10.1039/C2DT30642E

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