Université de Neuchâtel

Synthesis, characterization and exploration of the catalytic, supramolecular and biological applications of dinuclear complexes

Johnpeter, Justin Paul Raj ; Therrien, Bruno (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2013.

The work presented in this thesis involves the synthesis and characterization of dinuclear ruthenium, rhodium and iridium complexes. The catalytic, supramolecular and biological applications of these dinuclear complexes will be discussed. In the first part, the synthesis of sawhorse-type diruthenium tetracarbonyl complexes and their catalytic applications in the supercritical carbon dioxide...

Université de Neuchâtel

Syntheses and characterization of mono and dinuclear complexes of platinum group metals bearing benzene-linked bis(pyrazolyl)methane ligands

Prasad, Kota Thirumala ; Therrien, Bruno ; Rao, Kollipara Mohan

In: Journal of Organometallic Chemistry, 2010, vol. 695, no. 9, p. 1375–1382

Reaction of the benzene-linked bis(pyrazolyl)methane ligands, 1,4-bis{bis(pyrazolyl)-methyl}benzene (L1) and 1,4-bis{bis(3-methylpyrazolyl)methyl}benzene (L2), with pentamethylcyclopentadienyl rhodium and iridium complexes [(η5-C5Me5)M(μ-Cl)Cl]2 (M = Rh and Ir) in the presence of NH4PF6 results under stoichiometric control in...

Université de Neuchâtel

Mono and dinuclear complexes of half-sandwich platinum group metals (Ru, Rh and Ir) bearing a flexible pyridyl-thiazole multidentate donor ligand

Prasad, Kota Thirumala ; Therrien, Bruno ; Rao, Kollipara Mohan

In: Journal of Organometallic Chemistry, 2010, vol. 695, no. 2, p. 226–234

The mononuclear cationic complexes [(η6-C6H6)RuCl(L)]+ (1), [(η6-p-iPrC6H4Me)RuCl(L)]+ (2), [(η5-C5H5)Ru(PPh3)(L)]+ (3), [(η5-C5Me5)Ru(PPh3)(L)]+ (4),...

Université de Neuchâtel

Mono and dinuclear half-sandwich platinum group metal complexes bearing pyrazolyl-pyrimidine ligands: Syntheses and structural studies

Prasad, Kota Thirumala ; Therrien, Bruno ; Geib, Steven ; Rao, Kollipara Mohan

In: Journal of Organometallic Chemistry, 2010, vol. 695, no. 4, p. 495–504

Reactions of 0.5 eq. of the dinuclear complexes [(η6-arene)Ru(μ-Cl)Cl]2 (arene = η6-C6H6, η6-p-iPrC6H4Me) and [(Cp∗)M(μ-Cl)Cl]2 (M = Rh, Ir; Cp∗ = η5-C5Me5) with 4,6-disubstituted pyrazolyl-pyrimidine ligands (L)...

Université de Neuchâtel

Anticancer activity of new organo-ruthenium, rhodium and iridium complexes containing the 2-(pyridine-2-yl)thiazole N,N-chelating ligand

Gras, Michaël ; Süss-Fink, Georg ; Therrien, Bruno ; Casini, Angela ; Edafe , Fabio ; Dyson, Paul J.

In: Journal of Organometallic Chemistry, 2010, vol. 695, no. 8, p. 1119-1125

The dinuclear dichloro complexes [(η6-arene)2Ru2(μ-Cl)2Cl2] and [(η5-C5Me5)2M2 (μ-Cl)2Cl2] react with 2-(pyridine-2-yl)thiazole (pyTz) to afford the cationic complexes [(η6-arene)Ru(pyTz)Cl]+ (arene = C6H61,...

Université de Neuchâtel

Study of novel η5-cyclopentadienyl and η6-arene platinum group metal complexes containing a N4-type ligand and their structural characterization

Gupta, Gajendra ; Yap, Glenn P.A. ; Therrien, Bruno ; Rao, Kollipara Mohan

In: Polyhedron, 2009, vol. 28, no. 4, p. 844-850

The mononuclear η5-cyclopentadienyl complexes [(η5-C5H5)Ru(PPh3)2Cl], [(η5-C5H5)Os(PPh3)2Br] and pentamethylcyclopentadienyl complex [(η5-C5Me5)Ru(PPh3)2Cl] react in the presence of 1 eq. of the tetradentate...

Université de Neuchâtel

Pentamethylcyclopentadienyl rhodium and iridium complexes containing oxinato ligands

Thai, Trieu-Tien ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganic Chemistry Communications, 2009, vol. 12, no. 8, p. 806-807

The neutral chloro complexes [(η5-C5Me5)M(η2-NC9H6O)Cl] as well as the cationic aqua complexes [(η5-C5Me5)M(η2-NC9H6O)(H2O)]+ (M = Rh, Ir) have been synthesized from the reaction of the dinuclear precursors...

Université de Neuchâtel

Mono and dinuclear iridium, rhodium and ruthenium complexes containing chelating carboxylato pyrazine ligands: Synthesis, molecular structure and electrochemistry

Govindaswamy, Padavattan ; Therrien, Bruno ; Süss-Fink, Georg ; Štěpnička, Petr ; Ludvík, Jiří

In: Journal of Organometallic Chemistry, 2007, vol. 692, no. 8, p. 1661-1671

The mononuclear complexes [(η5-C5Me5)IrCl(L1)] (1), [(η5-C5Me5)RhCl(L1)] (2), [(η6-p-PriC6H4Me)RuCl(L1)] (3) and [(η6-C6Me6)RuCl(L1)] (4) have been synthesised from...

Université de Neuchâtel

Cationic half-sandwich complexes (Rh, Ir, Ru) containing 2-substituted-1,8-naphthyridine chelating ligands: Syntheses, X-ray structure analyses and spectroscopic studies

Prasad, Kota Thirumala ; Therrien, Bruno ; Rao, Kollipara Mohan

In: Journal of Organometallic Chemistry, 2008, vol. 693, no. 18, p. 3049-3056

Reactions of the dinuclear complexes [(η6-arene)Ru(μ-Cl)Cl]2 (arene = C6H6, p-iPrC6H4Me) and [(η5-C5Me5)M(μ-Cl)Cl]2 (M = Rh, Ir) with 2-substituted-1,8-naphthyridine ligands, 2-(2-pyridyl)-1,8-naphthyridine (pyNp), 2-(2-thiazolyl)-1,8-naphthyridine (tzNp)...

Université de Neuchâtel

Tri- and Tetranuclear Mixed-Metal Clusters Containing Alkyne Ligands : Synthesis and Structure of [Ru3Ir(CO)11(RCCR’)]-, [Ru2Ir(CO)9(RCCR’)]-, and [HRu2Ir(CO)9(RCCR’)]

Ferrand, Vincent ; Süss-Fink, Georg ; Neels, Antonia ; Stoeckli-Evans, Helen

In: European Journal of Inorganic Chemistry, 1999, vol. 5, p. 853 - 862

The tetrahedral cluster anion [Ru3Ir(CO)13]- (1) reacts with internal alkynes RCCR to afford the alkyne derivatives [Ru3Ir(CO)11(RCCR)]- (2: R = R’ = Ph; 3: R = R’ = Et; 4: R = Ph; R’ = Me; 5: R = R’ = Me) which have a butterfly arrangement of the Ru3Ir skeleton in which the...