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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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Torvisco, Ana
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Synthesis and Characterization of Alkali Metal Hypersilyl Borates
- 2023Dinuclear doubly bridged phenoxido copper(II) complexes as efficient anticancer agentscitations
- 2023Synthesis and Characterization of 3-Aminopropyl-phenyl Germanescitations
- 2023Structure and magnetic characterization of some bicompartmental [N6O2] divalent metal(ii) complexes using bis(phenolato) ligands bearing two pendant bis(pyridyl) amine arms
- 2023Magnetostructural Properties of Some Doubly-Bridged Phenoxido Copper(II) Complexescitations
- 2023Copper(II) and zinc(II) complexes bridged by benzenoid aromatic oxocarbon and dicarboxylate dianionscitations
- 2021Syntheses, structural characterization, and thermal behaviour of metal complexes with 3-aminopyridine as co-ligandscitations
- 2020Synthesis and characterization of zinc di(O-2,2-dimethylpentan-3-yl dithiocarbonates) bearing pyridine or tetramethylethylenediamine coligands and investigation of their thermal conversion mechanisms towards nanocrystalline zinc sulfidecitations
- 2020Polynuclear and coordination polymers of copper(II) complexes assembled by flexible polyamines and bridging rigid N-heterocyclic multicarboxylatescitations
- 2019Structure, DFT Calculations, and Magnetic Characterization of Coordination Polymers of Bridged Dicyanamido-Metal(II) Complexescitations
- 2019Synthesis and characterization of 1D coordination polymers of metal(II)-dicyanamido complexescitations
- 2014Stable Silenolates and Brook-Type Silenes with Exocyclic Structurescitations
- 2014Photoinduced Brook-type Rearrangement of Acylcyclopolysilanescitations
- 2013Bismuth sulphide–polymer nanocomposites from a highly soluble bismuth xanthate precursorcitations
- 2013Synthesis and Properties of Bridgehead-Functionalized Permethylbicyclo[2.2.2]octasilanescitations
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article
Synthesis and Properties of Bridgehead-Functionalized Permethylbicyclo[2.2.2]octasilanes
Abstract
A series of previously unknown bridgehead-functionalized bicyclo[2.2.2]octasilanes, Me3Si-Si8Me12-X, X-Si8Me12-X, and X-Si8Me12-Y [X, Y = −SiMenPh3–n (n = 1, 2) (2, 3, 10), −SiMe2Fc (Fc = ferrocenyl) (4, 11, 13, 14), −COR (R = Me, tBu) (6, 7, 12), COOMe (8), COOH (9)], have been prepared by the reaction of the silanides Me3Si-Si8Me12–K+ or K+–Si8Me12–K+ with proper electrophiles and fully characterized. The molecular structures of 2, 3, 4, 6, 8, 9, 10, and 13 as determined by single-crystal X-ray diffraction analysis exhibit a slightly twisted structure of the bicyclooctasilane cage. Endocyclic bond lengths, bond angles, and dihedral angles are not influenced considerably by the substituents attached to the bridgehead silicon atoms. Due to σ(SiSi)/π(aryl) conjugation, a 20–30 nm bathochromic shift of the longest wavelength UV absorption band relative to Me3Si-Si8Me12-SiMe3 (1) is evident in the UV absorption spectra of the phenyl and ferrocenyl derivatives. Otherwise, UV absorption data do not support the assumption of aryl/aryl or aryl/C═O interaction via the σ(SiSi) bicyclooctasilane framework.