Volume 20, Issue 7 pp. 469-483
Research Article

Investigation of cation complexation behavior of azacrown ether substituted benzochromene

O. A. Fedorova

Corresponding Author

O. A. Fedorova

Photochemistry Center of RAS, Novatorov str. 7a, 119421 Moscow, Russia

Center of Photochemistry at the Joint N.N.Semenov Institute of Chemical Physics of the Russian Academy of Sciences, ul.Novatorov 7a, 117421 Moscow, Russia.===Search for more papers by this author
F. Maurel

F. Maurel

ITODYS, Université Paris 7, CNRS (ESA 7086), 1 Rue Guy de la Brosse, 75005 Paris, France

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A. V. Chebun'kova

A. V. Chebun'kova

Photochemistry Center of RAS, Novatorov str. 7a, 119421 Moscow, Russia

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Yu. P. Strokach

Yu. P. Strokach

Photochemistry Center of RAS, Novatorov str. 7a, 119421 Moscow, Russia

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T. M. Valova

T. M. Valova

Photochemistry Center of RAS, Novatorov str. 7a, 119421 Moscow, Russia

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L. G. Kuzmina

L. G. Kuzmina

Institute of General and Inorganic Chemistry, RAS, Leninskii Pr. 31, 117907 Moscow Russia

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J. A. K. Howard

J. A. K. Howard

Department of Chemistry, University of Durham, South Road, Durham, DH1 3LE, UK

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M. Wenzel

M. Wenzel

Technical University Dresden, Department of Chemistry, Laboratory of Coordination Chemistry, Bergstr. 66, 01062 Dresden, Germany

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K. Gloe

K. Gloe

Technical University Dresden, Department of Chemistry, Laboratory of Coordination Chemistry, Bergstr. 66, 01062 Dresden, Germany

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V. Lokshin

V. Lokshin

Faculte des Sciences de Luminy, Universite de la Mediterranee, UMR 6114 CNRS, 13288 Marseille, France

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A. Samat

A. Samat

Faculte des Sciences de Luminy, Universite de la Mediterranee, UMR 6114 CNRS, 13288 Marseille, France

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First published: 29 April 2007
Citations: 29

Abstract

The study of the complex formation of 3,3-diphenyl-3H-benzo[f]chromenes containing aza-18-crown-6-ether, diaza-18-crown-6-ether or morpholine units with alkali, alkaline earth, heavy and transition metal cations in acetonitrile is reported. The spectroscopic and kinetic behavior of the photomerocyanine isomers of these chromenes is strongly affected by complexation with a metal cation. In order to interpret some of experimental data, an ab initio theoretical analysis of photochromic-crown ether and its cation complexes was conducted. The different site of coordination of mono- and divalent cations to determine the minimum-energy structure of benzochromene complexes in gas phase as well as in acetonitrile as solvent was explored. The coordination of both carbonyl oxygen and crown-ether macrocyle with divalent cations in carbonyl-capped structure is found to be the most stable isomer in gas as well as in condensed media. The crown-containing benzochromenes were studied in liquid-liquid extraction experiments toward there capacity to transfer metallic salts from water into an organic phase.The high selectivity to extraction of Ag+ was found. Copyright © 2007 John Wiley & Sons, Ltd.

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