In: Journal of Organometallic Chemistry, 2004, vol. 689, p. 1362-1369
By checking the chemistry underlying the concept of "supramolecular cluster catalysis" we identified two major errors in our publications related to this topic, which are essentially due to contamination problems. (1) The conversion of the "closed" cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+ (1) into the...
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In: Inorganica Chimica Acta, 2003, vol. 355, p. 335-339
Ferrocene carboxylic acid 2-cyclohexa-1,4-dienyl-ethyl ester (1) is prepared from ferrocene carboxylic acid and 2-cyclohexa-1,4-dienyl-ethanol. This diene reacts with RuCl3•nH2O in refluxing ethanol to afford quantitatively [Ru(Fc-arene)Cl2]2 (2) (Fc-arene=ferrocene carboxylic acid phenethyl ester). The dinuclear complex 2...
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In: Journal of Organometallic Chemistry, 2003, vol. 684, p. 117-123
The trinuclear arene-ruthenium cluster cations [H3Ru3{C6H5 (CH2)nOH}(C6Me6)2 (O)]+ (3: n=2, 4: n=3) have been synthesised from the dinuclear precursor [H3Ru2 (C6Me6)2]+ and the mononuclear...
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In: Inorganica Chimica Acta, 2003, vol. 355, p. 394-398
The trinuclear arene–ruthenium cluster cations [H3Ru3(C6H6)(C6H2Me4)2(O)]+ (2) and [H3Ru3{C6H5(CH2)2OH}(C6H2Me4)2(O)]+ (3) have been synthesised from the dinuclear...
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In: Inorganica Chimica Acta, 2004, vol. 357, p. 834-838
Dinuclear dichloro complexes [Ru(C6H6)Cl2]2, [Ru(p-MeC6H4iPr)Cl2]2, [Ru(1,2,4,5-C6H2Me4)Cl2]2, and [Ru(C6Me6)Cl2]2 react in ethanol with p-bromothiophenol to give the corresponding...
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In: Polyhedron, 2003, vol. 22, p. 543-548
The reaction of [(arene)RuCl2]2 (arene=C6H6, p-Me—C6H4—iPr, C6Me6) with p-thiocresol, 2-mercaptoethanol and p-mercaptophenol in refluxing ethanol gives the tris-thiolato complexes [(arene) 2Ru2(SR)3]+...
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In: Tetrahedron Letters, 2002, vol. 43, p. 6653-6655
Seven- and eight-membered analogues of barbituric acid are easily accessible by insertion of carbodiimides into cyclic anhydrides catalyzed by the cationic hydroxo cluster [H3Ru4 (C6H6)4 (OH)] 2+.
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In: Journal of Organometallic Chemistry, 2005, vol. 690, p. 3202-3211
The monocationic chloro complexes containing chelating 1,10-phenanthroline (phen) ligands [(arene)Ru(N∩N)Cl] + (1: arene = C6H6, N∩N = phen; 2: arene = C6H6, N∩N = 5-NO2-phen; 3: arene = p-MeC6H4Pri, N∩N = phen; 4: arene =...
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In: Journal of Organometallic Chemistry, 2004, vol. 689, p. 2820-2826
The hydrogen-bonded systems formed between monocarboxylic acid derivatives and the trinuclear arene-ruthenium cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+ (1) have been studied in solution by cold-spray ionisation mass spectroscopy (CSI-MS) and in the solid state by single-crystal X-ray structure analysis...
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In: Inorganica Chimica Acta, 2006, vol. 359, p. 1012-1017
The dinuclear ruthenium complexes Ru2(CO)4(OOCC5H4FeC5H5)2L2 (L = NC5H5: 1, L = PPh3: 2) have been synthesized from Ru3(CO)12, ferrocene carboxylic acid and pyridine or triphenylphosphine, respectively. The single-crystal X-ray structure analysis reveals...
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