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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
Syntheses and molecular structures of some tricobalt carbonyl clusters containing 2,4,6-trimethyl-1,3,5-trithiane
Abstract
Reactions of CCo3 carbonyl clusters Co3(μ3-CR)(CO)9 with 2,4,6-trimethyl-1,3,5-trithiane (SMe3) have given Co3(μ3-CR)(μ3-SMe3)(CO)6 [R = H (1), C≡CSiMe3 (2)]. A small amount of the coupled-alkyne product Me3SiC2[Co2(CO)6]C2[Co2(μ-SMe3)(CO)4]C≡CSiMe3 (3) was isolated from the latter reaction. The reaction of Co3(μ3-CC≡CSiMe3)(μ3-SMe3)(CO)6 (2) with AuCl(PPh3) in the presence of NaOMe gave Co3{μ3-CC≡CAu(PPh3)}(μ3-SMe3)(CO)6 (4), which in turn reacts with Co3(μ3-CBr)(CO)9 in the presence of catalytic amounts of Pd(PPh3)4 and CuI to give {(OC)9Co3}(μ-C≡CC≡C){Co3(μ3-SMe3)(CO)6} (5). Further substitution of 5 with SMe3 gave symmetrical {Co3(μ3-SMe3)(CO)6}2(μ-C≡CC≡C) (6), also obtained from a reaction between {Co3(CO)9}2(μ-C≡CC≡C) and two equivalents of SMe3. Similar substitution of Co3{μ3-C(C≡C)2[Ru(dppe)Cp*]}(CO)9 with SMe3 gave Co3{μ3-C(C≡C)2[Ru(dppe)Cp*]}(μ3-SMe3)(CO)6 (7). In all of these compounds, the SMe3 ligand caps the basal face of the CCo3 cluster on the opposite side to the μ3-CR group. The three S donors occupy axial sites, with all CO groups being in equatorial sites. Reactions of Co3(μ3-CBr)(CO)9 with SMe3 gave only Co3(μ3-CX)(μ3-SMe3)(CO)6 [X = C(O)NMe2 (8), CO2H (9)]. The redox properties and electronic structure of the C4-bridged bis-cluster 6 have been investigated through a combination of cyclic voltammetry, IR spectroelectrochemistry and DFT calculations, with comparisons made with suitable model systems. Single-crystal X-ray diffraction structure determinations of 1, 2, 3, 4 and 8 are reported.