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2 article(s) from Alévêque, Olivier

Tetrathiafulvalene-based azine ligands for anion and metal cation coordination

Awatef Ayadi,
Aziz El Alamy,
Olivier Alévêque,
Magali Allain,
Nabil Zouari,
Mohammed Bouachrine and
Abdelkrim El-Ghayoury

Beilstein J. Org. Chem. 2015, 11, 1379–1391, doi:10.3762/bjoc.11.149

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Graphical Abstract

Scheme 1: Multifunctional TTF-appended azine ligands.

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Scheme 2: Synthetic scheme for TTF-based azine ligands L1 and L2.

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Figure 1: Crystal structure of ligand L1 with atom numbering scheme (top) and a side view of the molecule (bo...

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Figure 2: Partial crystal packing of ligand L1 with formation of head to tail dimers that stack along a-axis ...

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Figure 3: Packing diagram of L1 showing the orientation of the columns of head to tail dimers.

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Figure 4: UV–visible absorption spectra of ligands L1 and L2 (c 2.5 × 10⁻⁵ M in (dichloromethane/acetonitrile...

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Figure 5: HOMO–LUMO Frontier orbitals representation for ligands L1 and L2.

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Figure 6: Cyclic voltammograms of ligands L1 and L2 (2 × 10⁻⁵ M) in CH₂Cl₂/CH₃CN (9:1, v/v) at 100 mV·s⁻¹ on ...

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Figure 7: UV–visible spectral changes of ligand L2 (2 × 10⁻⁵ M in CH₂Cl₂/CH₃CN, 9/1) upon addition of TBAF.

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Figure 8: ¹H NMR spectra of ligand L2 (4·10⁻³ M in DMSO-d₆) upon addition of successive aliquots of TBAF (DMS...

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Figure 9: Crystal structure of complex 3 with atom numbering scheme (top) and a side view of the molecule (bo...

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Figure 10: Pattern of intramolecular and intermolecular contacts in 3. Two molecules are linked by pairs of st...

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Figure 11: Layered structure of complex 3 viewed along the a-axis. The dimers are linked together through hydr...

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Full Research Paper

Published 07 Aug 2015

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Glycoluril–tetrathiafulvalene molecular clips: on the influence of electronic and spatial properties for binding neutral accepting guests

Yoann Cotelle,
Marie Hardouin-Lerouge,
Stéphanie Legoupy,
Olivier Alévêque,
Eric Levillain and
Piétrick Hudhomme

Beilstein J. Org. Chem. 2015, 11, 1023–1036, doi:10.3762/bjoc.11.115

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Figure 1: Structures of molecular clips 1–4.

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Scheme 1: Different routes developed for the synthesis of molecular clips 1–4.

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Scheme 2: Reaction between diphenylglycoluril with 4,5-bis(bromomethyl)-2-thioxo-1,3-dithiole.

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Figure 2: Intramolecular distances between TTF moieties from X-ray analysis for clips 2 and 3 and theoretical...

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Figure 3: Cyclic voltammograms of molecular clips 1, 2, 3, 4 and F₄-TCNQ at 10⁻³ M in 0.1 M TBAPF₆/CH₂Cl₂/CH₃...

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Figure 4: Cyclic voltammograms of molecular clip 2 at different concentrations (left: 10⁻⁵ M; middle: 10⁻⁴ M;...

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Scheme 3: Graphical representation of the stepwise oxidation of molecular clips 1, 2 and 3.

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Scheme 4: Electrochemical mechanism used to simulate the CVs of molecular clips 1, 2 and 3.

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Figure 5: Chemical oxidation of molecular clip 1 (10⁻⁴ M, CH₂Cl₂) using aliquots of NOSbF₆ oxidizing reagent ...

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Figure 6: Spectroelectrochemical experiment of molecular clip 1 during the first oxidation step at different ...

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Figure 7: Molecular structure of molecular clip 15 and representation of its stepwise oxidation processes pro...

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Figure 8: Molecular packing diagram of clips 2 (left) and 3 (right) obtained from X-ray analysis. A molecule ...

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Figure 9: Left: Job plot analysis for DNB vs molecular clip 3 ([3 + DNB] = 10⁻³ M in o-C₆H₄Cl₂ at 800 nm) at ...

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Figure 10: UV–visible absorption spectra of F₄-TCNQ (CH₂Cl₂, 10⁻⁵ M) upon titration with molecular clip 3 (CH₂...

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Figure 11: Redox interaction (left) and complexation (right) of F₄-TCNQ with molecular clips 3 and 4.

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Published 17 Jun 2015

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