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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Rosa, V.
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Publications (5/5 displayed)
- 2022RoBDEMAT: A risk of bias tool and guideline to support reporting of pre-clinical dental materials research and assessment of systematic reviews.citations
- 2018Imine ligands based on ferrocene: Synthesis, structural and Mössbauer characterization and evaluation as chromogenic and electrochemical sensors for Hg2+citations
- 2015Reactivity of TCNE and TCNQ derivatives of quinonoid zwitterions with Cu(I)citations
- 2014Copper(ii) complexes of bis(aryl-imino)acenaphthene ligandscitations
- 2012New quinoline α-diimine ligands as fluorescent probes for metal ions: Ultrasound-assisted and conventional synthetic methodscitations
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article
Reactivity of TCNE and TCNQ derivatives of quinonoid zwitterions with Cu(I)
Abstract
<p>The reactions of TCNE- and TCNQ-functionalized (TCNE: tetracyanoethylene and TCNQ: 7,7′,8,8′-tetracyanoquinodimethane) zwitterionic benzoquinonemonoimines with a Cu(i)-BIAN complex (BIAN = bis(o,o′-bisisopropylphenyl)acenaphthenequinonediimine) have been investigated and found to follow a diversity of interesting patterns. The complexes [Cu(BIAN)(NCMe)(L2)]BF<sub>4</sub> (2) and [Cu(BIAN)(L2)<sub>2</sub>]BF<sub>4</sub> (4) were obtained by reacting [Cu(BIAN)(NCMe)<sub>2</sub>]BF<sub>4</sub> (1) with one and two equivalents of L2, respectively. Following similar procedures, the complexes [Cu(BIAN)(NCMe)(L3)]BF<sub>4</sub> (6) and [Cu(BIAN)(L3)<sub>2</sub>]BF<sub>4</sub> (7) were obtained by reaction of 1 with L3. The reaction of 2 with 0.5 equiv. of 4,4′-bipyridine afforded [{Cu(BIAN)(L2)}<sub>2</sub>(μ-4,4′-bipyridine)](BF<sub>4</sub>)<sub>2</sub> (3). The complexes were characterized by multinuclear NMR, IR and UV-Vis spectroscopic techniques, mass spectrometry, cyclic voltammetry and elemental analysis. The molecular structures of complexes 3·4CH<sub>2</sub>Cl<sub>2</sub> and 4·CH<sub>2</sub>Cl<sub>2</sub> were determined by single crystal X-ray diffraction. An unexpected coordination polymer [Cu(L2<sup>-</sup>)<sub>2</sub>]<sub>∞</sub> (5) was also structurally characterized, which contains Cu(ii) centres chelated by two N,O-bound ligands resulting from the monodeprotonation of L2.</p>