Coordination Modes of <i>Ortho</i>-Substituted Benzoates Towards Divalent Copper Centres in the Presence of Diimines

The coordination modes of several <i>ortho</i>-substituted benzoates towards the copper(II) centre are investigated. The coordination environment of the metal ion includes nitrogen atoms from 2,2′-bipyridine (bipy) or 1,10-phenanthroline (phen) and occasionally oxygen atoms from coordina...

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Bibliographic Details
Main Authors: Ioannis Loukas, Eirini Frantzana, Antonios Hatzidimitriou, Demetrios Tzimopoulos, Pericles Akrivos
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Chemistry
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Online Access:https://www.mdpi.com/2624-8549/6/6/81
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Summary:The coordination modes of several <i>ortho</i>-substituted benzoates towards the copper(II) centre are investigated. The coordination environment of the metal ion includes nitrogen atoms from 2,2′-bipyridine (bipy) or 1,10-phenanthroline (phen) and occasionally oxygen atoms from coordinated water, ethanol molecules, or nitrate ions. The compounds are investigated by a variety of spectroscopic methods and by single-crystal X-ray diffraction. Although the reaction scheme involved equimolar amounts of the reactants, cationic dinuclear compounds with a metal/benzoate/diimine ratio of 2:3:2 have been realized, cationic in nature regardless of the counter anion used. Furthermore, the carboxylate moieties display a range of twisting relative to the orientation of the benzene ring to which they are attached.
ISSN:2624-8549