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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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Low, Paul J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2021Uncapped gold nanoparticles for the metallization of organic monolayerscitations
- 2017Coordinating Tectons. Experimental and Computational Infrared Data as Tools to Identify Conformational Isomers and Explore Electronic Structures of 4-Ethynyl-2,2′-bipyridine Complexescitations
- 2017All-carbon electrode molecular electronic devices based on Langmuir–Blodgett monolayerscitations
- 2014Preparation of nascent molecular electronic devices from gold nanoparticles and terminal alkyne functionalised monolayer filmscitations
- 2014From an Organometallic Monolayer to an Organic Monolayer Covered by Metal Nanoislands: A Simple Thermal Protocol for the Fabrication of the Top Contact Electrode in Molecular Electronic Devicescitations
- 2013Straightforward Access to Tetrametallic Complexes with a Square Array by Oxidative Dimerization of Organometallic Wirescitations
- 2013Molecular Wires using (Oligo)pyrroles as Connecting Units: An Electron Transfer Studycitations
- 2011Synthesis, spectroscopy and electronic structure of the vinylidene and alkynyl complexes [W(CCHR)(dppe)(η-C7H7)]+ and [W(CCR)(dppe)(η-C7H7)]n+ (n = 0 or 1)citations
- 2010Syntheses and molecular structures of some tricobalt carbonyl clusters containing 2,4,6-trimethyl-1,3,5-trithianecitations
- 2009Organometallic Complexes for Nonlinear Optics. 45. Dispersion of the Third-Order Nonlinear Optical Properties of Triphenylamine-Cored Alkynylruthenium Dendrimerscitations
- 2007Syntheses, structures and redox properties of some complexes containing the Os(dppe)Cp* fragment, including [{Os(dppe)Cp*}2(μ-C=CC=C)]citations
- 2006Polymetallation of alkenes: Formation of some complexes containing branched chain carbon-rich ligandscitations
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article
Coordinating Tectons. Experimental and Computational Infrared Data as Tools to Identify Conformational Isomers and Explore Electronic Structures of 4-Ethynyl-2,2′-bipyridine Complexes
Abstract
<p>4-Ethynyl-2,2′-bipyridyl-substituted ruthenium alkynyl complexes have been prepared and used to access a range of binuclear homometallic ruthenium and heterometallic ruthenium-rhenium complexes. These have been characterized by a variety of spectroscopic and single-crystal X-ray diffraction experiments. The IR spectra of a number of these ruthenium alkynyls display multiple ν(C≡C) bands in the IR spectra, which are rationalized in terms of putative conformational isomers, whose calculated infrared stretching frequencies are comparable to those obtained experimentally. The mononuclear alkynyl ruthenium complexes undergo reversible one-electron oxidations centered largely on the alkynyl ligands, as inferred from the significant shift in ν(C≡C) frequency on oxidation, while the binuclear complex [Ru{C≡C-4-bpy-κ<sup>2</sup>-N,N′-RuClCp}(dppe)Cp∗]<sup>+</sup> undergoes initial oxidation at the very electron rich {RuCl(bpy)Cp} fragment, causing only a small change in ν(C≡C). A combination of IR and UV-vis spectroelectrochemical experiments, supported by quantum chemical calculations on a selected range of conformers, led to the classification of [Ru{C≡C-4-bpy-κ<sup>2</sup>-N,N′-RuClCp}(dppe)Cp∗]<sup>+</sup> as a weakly coupled class II mixed-valence compound (H<sub>ab</sub> = 306 cm<sup>-1</sup>). These results indicate that there is improved electronic communication through the 4-ethynyl-2,2′-bipyridyl ligand in comparison to the analogous 5-ethynyl-2,2′-bipyridyl complexes (H<sub>ab</sub> = 17 cm<sup>-1</sup>).</p>