Issue 9, 2007
From the journal:

New Journal of Chemistry

Zinc–salophen complexes as selective receptors for tertiary amines

Antonella Dalla Cort,*a   Luigi Mandolini,a   Chiara Pasquini,a   Kari Rissanen,*b   Luca Russob  and  Luca Schiaffinoa  

* Corresponding authors

a Dipartimento di Chimica and IMC-CNR, Università La Sapienza, Roma, Italy
E-mail: antonella.dallacort@uniroma1.it
Fax: +39 06 490421
Tel: +39 06 49913087

b Nanoscience Center, Department of Chemistry, University of Jyväskylä, P.O. Box 35, JYU, Finland
E-mail: Kari.Rissanen@jyu.fi
Fax: +358 14602501
Tel: +358 14602672

Abstract

Zinc–salophen compounds 1–3 incorporating in the given order 1,2-diaminobenzene, 2,3-diaminonaphthalene, and 9,10-diaminophenantrene moieties were synthesised. Their binding properties toward a series of tertiary amines were assessed by UV-Vis and fluorescence spectroscopy in chloroform solution. Unprecedented selectivities of quinuclidine vs. triethylamine higher than 105 were recorded, thereby revealing the dramatic influence of steric effects on axial coordination of tertiary amines. X-Ray diffraction analyses showed that in the solid state compound 2 is dimeric, but its 1 : 1 quinuclidine complex is monomeric. Strong indications were obtained that both free receptors and their amine adducts are monomeric in dilute chloroform solution.

Graphical abstract: Zinc–salophen complexes as selective receptors for tertiary amines

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Article information

DOI
https://doi.org/10.1039/B700723J
Article type
Paper
Submitted
16 Jan 2007
Accepted
08 May 2007
First published
29 May 2007

New J. Chem., 2007,31, 1633-1638

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Zinc–salophen complexes as selective receptors for tertiary amines

A. Dalla Cort, L. Mandolini, C. Pasquini, K. Rissanen, L. Russo and L. Schiaffino, New J. Chem., 2007, 31, 1633 DOI: 10.1039/B700723J

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