Platinum-Based Organometallic Folders for the Recognition of Electron-Deficient Aromatic Substrates
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Otros documentos de la autoría: Nuevo Vialás, Daniel; Gonell, Sergio; Poyatos, Macarena; Peris, Eduardo
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Título
Platinum-Based Organometallic Folders for the Recognition of Electron-Deficient Aromatic SubstratesFecha de publicación
2017-05-29Editor
WileyISSN
0947-6539; 1521-3765Cita bibliográfica
NUEVO, Daniel, et al. Platinum‐Based Organometallic Folders for the Recognition of Electron‐Deficient Aromatic Substrates. Chemistry-A European Journal, 2017, vol. 23, no 30, p. 7272-7277.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/doi/10.1002/chem.201605241/fullVersión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
A series of platinum complexes with cis-oriented polyaromatic N-heterocyclic carbene ligands were prepared and characterized. The relative disposition of the polyaromatic ligands about the metal cause these compounds ... [+]
A series of platinum complexes with cis-oriented polyaromatic N-heterocyclic carbene ligands were prepared and characterized. The relative disposition of the polyaromatic ligands about the metal cause these compounds to behave as metallofolders, featuring a cavity defined by the void space between the polyaromatic functionalities. The complexes were used as receptors of organic molecules, whereby selective affinity was displayed for electron-deficient aromatic substrates, such as 1,2,4,5-tetracyanobenzene (TCNB), 2,4,7-trinitro-9-fluorenone (TNFLU), and 1,4,5,8-naphtalenetetracarboxylic dianhydride (NTCDA). The binding affinities of two of the metallofolders with these substrates were determined by means of 1H NMR titrations. Electrospray mass spectrometry (ESI-MS) was also used to assess the affinities. The molecular structure of one of the platinum folders was determined in the presence of TCNB, showing the clear interaction between this guest molecule and the folder formed by the two mutually cis-oriented polyaromatic ligands. This work demonstrates how the presence of the mutually cis-oriented polyaromatic ligands may be a very useful tool for the preparation of metal-based receptors. [-]
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Chemistry-A European Journal, 2017, vol. 23, no 30, p. 7272-7277Proyecto de investigación
MINECO (Spain) / CTQ2014-51999-P; Universitat Jaume I / P11B2014-02, P11B2015-24Derechos de acceso
Copyright © John Wiley & Sons, Inc.
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