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Université de Neuchâtel

Arene Ruthenium Cages: Boxes Full of Surprises

Therrien, Bruno

In: European Journal of Inorganic Chemistry, 2009, vol. 17, p. 2445-2453

Self-assembly of polypyridyl ligands with dinuclear arene ruthenium building blocks bridged by chlorido, oxalato or benzoquinonato ligands has allowed the construction of a wide range of cationic metalla complexes possessing different architectures and functionalities: (i) metalla-rectangles showing host-guest possibilities and allowing intramolecular template-controlled photochemical [2 + 2]...

Université de Neuchâtel

Designing the Host-Guest Properties of Tetranuclear Arene Ruthenium Metalla-Rectangles to Accommodate a Pyrene Molecule

Barry, Nicolas P. E. ; Furrer, Julien ; Freudenreich, Julien ; Süss-Fink, Georg ; Therrien, Bruno

In: European Journal of Inorganic Chemistry, 2010, vol. 5, p. 725-728

Cationic tetranuclear arene ruthenium complexes of the general formula [Ru4(p-cymene)4(N∩N)2(dhnq)2]4+ comprising rectangular structures are obtained in methanol from the reaction of the dinuclear arene ruthenium precursor [Ru2(p-cymene)2(dhnq)2Cl2] (dhnq =...

Université de Neuchâtel

Encapsulation of Triphenylene Derivatives in the Hexanuclear Arene Ruthenium Metallo-Prismatic Cage [Ru6 (p-PriC6H4Me)6(tpt)2 (dhbq)3]6+ (tpt = 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine, dhbq = 2,5-dihydroxy-1,4-benzoquinonato)

Govindaswamy, Padavattan ; Furrer, Julien ; Süss-Fink, Georg ; Therrien, Bruno

In: Zeitschrift für anorganische und allgemeine Chemie, 2008, vol. 634, no. 8, p. 1349-1352

A large cationic triangular metallo-prism, [Ru6(p-PriC6H4Me)6 (tpt)2 (dhbq)3]6+ (1)6+, incorporating p-cymene ruthenium building blocks, bridged by 2,5-dihydroxy-1,4-benzoquinonato (dhbq) ligands, and connected by two 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine (tpt) subunits, allows the permanent...

Université de Neuchâtel

Host-Guest Chemistry in the Hexanuclear (Arene)ruthenium Metalla-Prismatic Cage [Ru6(p-cymene)6(tpt)2(dhnq)3]6+

Barry, Nicolas P.E. ; Therrien, Bruno

In: European Journal of Inorganic Chemistry, 2009, vol. 31, p. 4695-4700

A large cationic triangular metalla-prism, [Ru6(p-cymene)6(tpt)2(dhnq)3]6+ ([1]6+), incorporating (p-cymene)ruthenium building blocks, bridged by 5,8-dihydroxy-1,4-naphthoquinonato (dhnq) ligands, and connected by two 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine (tpt) subunits, allows encapsulation of various guest...

Université de Neuchâtel

Increasing the size of metalla-assemblies to target the EPR-effect of tumors and solid cancers

Mannancherril, Vidya ; Therrien, Bruno (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2019.

Cancer, a malignant disease, is one of the leading causes of mortality and morbidity among humans. However, selective targeting of cancerous tissue remains challenging. The enhanced permeability and retention effect (EPR-effect), a naturally occurring phenomenon in solid cancerous tissue, is a suitable treatment pathway to selectively target cancerous tissues, whereas healthy tissue remains...

Université de Neuchâtel

Olefin Cross-Metathesis: a Versatile Synthetic Reaction for the Design of Janus Liquid Crystals

Trinh, Thi Minh Nguyet ; Nguyen, Thanh Tung ; Kopp, Cyril ; Pieper, Pauline ; Russo, Virginie ; Heinrich, Benoît ; Donnio, Bertrand ; Nguyen, Thi Le Anh ; Deschenaux, Robert

In: European Journal of Organic Chemistry, 2015, vol. 2015, no. 27, p. 6005-6010

The olefin cross-metathesis reaction using the second-generation Grubbs catalyst was employed to prepare non-symmetrical thermotropic liquid crystals from various mesomorphic or nonmesomorphic type I and type II olefinic constructs, including linear, chiral, dendritic and ferrocenyl olefins. Smectic C, smectic A and nematic phases, as well as chiral smectic A and chiral nematic phases were...

Université de Neuchâtel

Permanent Encapsulation or Host–Guest Behavior of Aromatic Molecules in Hexanuclear Arene Ruthenium Prisms

Freudenreich, Julien ; Barry, Nicolas P.E. ; Süss-Fink, Georg ; Therrien, Bruno

In: European Journal of Inorganic Chemistry, 2010, vol. 2010, no. 16, p. 2400-2405

Cationic arene ruthenium metallaprisms of the general formula [Ru6(p-cymene)6(tpt)2(OO∩OO)3]6+ {tpt = 2,4,6-tris(4-pyridyl)-1,3,5-triazine; OO∩OO = 9,10-dioxo-9,10-dihydroanthracene-1,4-diolato [1]6+, 6,11-dioxo-6,11-dihydronaphthacene-5,12-diolato [2]6+} have been...

Université de Neuchâtel

Photochemical [2+2] cycloaddition of the olefinic double bonds in the supramolecular rectangle [Ru4(η6-p-cymene)4(μ-oxalato)2(μ-4,4′-bipyridylethylene)2]4+

Barry, Nicolas P.E. ; Therrien, Bruno

In: Inorganic Chemistry Communications, 2009, vol. 12, no. 6, p. 465-468

Self-assembly of 4,4′-bipyridylethylene (bpe) bidentate connector with the dinuclear arene ruthenium clip [Ru2(η6-p-cymene)2(μ-oxalato)Cl2] in the presence of silver triflate affords the cationic organometallic rectangle [Ru4(η6-p-cymene)4(μ-oxalato)2(μ-bpe)2]4+...

Université de Neuchâtel

Preparation of Pillar[5]arene-Based [2]Rotaxanes from Acyl Chlorides and Amines

Milev, Radian ; Lopez-Pacheco, Alberto ; Nierengarten, Iwona ; Trinh, Thi Minh Nguyet ; Holler, Michel ; Deschenaux, Robert ; Nierengarten, Jean-François

In: European Journal of Organic Chemistry, 2015, vol. 2015, no. 3, p. 479-485

Pillar[5]arene-based [2]rotaxanes have been prepared from the reactions of diacyl chloride reagents with various amine stoppers. The yields of the [2]rotaxanes are sensitive to the reaction conditions (solvent and stoichiometry) as well as to structural and electronic factors. In particular, the nature of the starting amine reagent has a dramatic influence on the yields of [2]rotaxanes; thus,...

Université de Fribourg

Supramolecular agent–simulant correlations for the luminescence based detection of V-series chemical warfare agents with trivalent lanthanide complexes

Dennison, Genevieve H. ; Bochet, Christian G. ; Curty, Christophe ; Ducry, Julien ; Nielsen, David J. ; Sambrook, Mark R. ; Zaugg, Andreas ; Johnston, Martin R.

In: European Journal of Inorganic Chemistry, 2016, p. -

Solution spectroscopic investigations into the interactions of eight potential bidentate V-series organophosphorus chemical warfare agent (OP CWA) simulants with [Eu(phen)₂(NO₃)₃]·2H₂O demonstrated that the chemical and structural composition of the secondary binding site within the simulant was of paramount importance. Only simulants containing both phosphoryl/phosphonyl and...