Université de Neuchâtel

Synthesis and characterization of fullerene-pyridyl arene ruthenium complexes

Appavoo, Divambal ; Deschenaux, Robert ; Therrien, Bruno

In: Studia Universitatis Babes-Bolyai. Chemia, 2015, vol. 60, no. 4, p. 229-238

Association of [60]fullerene with arene ruthenium moieties has been achieved for the first time. Two fullerenopyrrolidine derivatives (Npyr-C60) were synthesized via a 1,3-dipolar cycloaddition, and coordinated to arene ruthenium complexes to form two half-sandwich complexes of the general formula...

Université de Neuchâtel

Ru2(CO)4{OOC(CH2)nCH3}2L2 sawhorse-type complexes containing μ2-η2-carboxylato ligands derived from saturated fatty acids

Johnpeter, J. P. ; Therrien, Bruno

In: Journal of Structural Chemistry, 2011, vol. 52, no. 1, p. 151-159

The thermal reaction of Ru3(CO)12 with the saturated fatty acids (heptanoic, nonanoic, decanoic, tridecanoic, tetradecanoic, heptadecanoic, octadecanoic) in refluxing tetrahydrofuran, followed by addition of triphenylphosphine (PPh3) or pyridine (C5H5N), gives the dinuclear complexes...

Université de Neuchâtel

X-ray crystallographic study of hydrogen-bonded systems formed between di- and tricarboxylic acids and the trinuclear cluster cation [H3Ru3(C6H6)(C6Me6)2 (O)]+

Therrien, Bruno ; Vieille-Petit, Ludovic ; Süss-Fink, Georg

In: Journal of Molecular Structure, 2005, vol. 749, no. 1, p. 183-186

The hydrogen-bonded systems formed between 5-bromo-isophthalic and trimesic acid derivatives and the trinuclear arene-ruthenium cluster cation [H3Ru3(C6H6)(C6Me6)2 (O)]+ (1) have been studied in the solid state by single-crystal X-ray structure analysis of the tetrafluoroborate salts. The structure...

Université de Neuchâtel

New dinuclear arene ruthenium complexes with P,S- or P,O-chelating ligands

Burger, Sylvain ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2004, vol. 357, no. 4, p. 1213-1218

Two equivalents of 2-diphenylphosphinobenzoic acid react with 1,2-ethanedithiol and 1,8-diaminonaphthalene under peptidic coupling conditions to give the new ligands 1,2-bis-S-[2′-(diphenylphosphino)benzoyl]dithioethane (dppte) (1) and 1,2-bis-N-[2′-(diphenylphosphino)benzoyl]diaminonaphthalene (dppan) (2), respectively. 1 and 2 have been characterised by...

Université de Neuchâtel

Ru2(CO)4(OOCR)2(PPh3)2 sawhorse-type complexes containing μ2-η2-carboxylato ligands derived from biologically active acids

Auzias, Mathieu ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2006, vol. 359, no. 1, p. 3412-3416

The thermal reaction of Ru3(CO)12 with the biologically active acids acetyl salicylic acid (Aspirin), α-methyl-4-(isobutyl)phenylacetic acid (Ibuprofen) and 3α,7α,12α-trihydroxy-5β-cholanic acid (cholic acid) in refluxing tetrahydrofuran, followed by addition of triphenylphosphine, gives the dinuclear complexes Ru2 (CO)...

Université de Neuchâtel

New mono and dinuclear arene ruthenium chloro complexes containing ester substituents

Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2006, vol. 359, no. 13, p. 4350-4354

The dinuclear arene ruthenium complexes [RuCl2{C6H5(CH2)3OCO-p-C6H4-OC8H17}]2 (1) and [RuCl2{p-C6H4(CH2COOCH2CH3)2}]2 (2) have been obtained by dehydrogenation of the...

Université de Neuchâtel

Dinuclear ruthenium sawhorse-type complexes containing carboxylato bridges and ferrocenyl substituents: Synthesis and electrochemistry

Auzias, Mathieu ; Süss-Fink, Georg ; Štěpnička, Petr ; Ludvík, Jiří

In: Inorganica Chimica Acta, 2007, vol. 360, no. 6, p. 2023-2028

The ferrocenyl-containing diruthenium complexes [Ru2(CO)4(μ2-η2-OOCFc)2L2] (Fc = ferrocenyl, fc = ferrocen-1,1′-diyl; 1: L = NC5H4–COOC6H4–OC10H21, 2: L =...

Université de Fribourg

Quantitative self-sensitized photooxidation of 1,2-diarylcyclobutene derivatives by singlet oxygen

Kühni, Joël ; Debieux, Jean-Luc ; Belser, Peter

In: Synthesis, 2007, p. 1421-1425

Ligands 1 and 2 underwent quantitative photooxidation when they were reacted with singlet oxygen sensitized by methylene blue. However, the quantitative reaction became self-sensitized for the compound Ru(1) wherein the ruthenium complex acted as a sensitizer.

Université de Neuchâtel

An iterative strategy for the synthesis of oligothiophenes by catalytic cross-coupling reactions

Pinault, Thomas ; Chérioux, Frédéric ; Therrien, Bruno ; Süss-Fink, Georg

In: Heteroatom Chemistry, 2004, vol. 15, p. 121 - 126

An iterative strategy for the synthesis of new sulfur-functionalized oligothiophenes by Suzuki or Stille cross-coupling reactions was applied to the reaction of 4-bromo-tert-butylphenylthioether with thiophene derivatives. The planarity of the oligothiophenes obtained was confirmed by the single-crystal X-ray structure analysis of 2-(4-tert-butylthiophenyl)thiophene, which shows a potentially...