Ruthénium

Science de la nature
Chimie
Chimie organique
Chimie organométallique

Publications associées (219)

À propos
Confidentialité
Mentions légales

Page 20 sur 22

New dyes for solar cells based on nanostructured semiconducting metal oxides Synthesis and characterization of ruthenium(II) complexes with thiol-substituted ligands

Ulf Anders Hagfeldt

Five azo-dyes: 4-phenylazo-phenol, 4-phenylazo-benzeneamine, 4-phenylazo-benzenethiol, 4-phenylazo-benzoic acid, and 4-phenylazo-pyridine have been prepd. and used as a "test kit" for rapid screening of functional group affinity to metal oxides. The dyes w ...

2002

Ammonium Chloride-Promoted Four-Component Synthesis of Pyrrolo[3,4-b]pyridin-5-ones

Jieping Zhu

A novel multicomponent synthesis of 5-aminooxazoles starting from simple and readily available inputs is described. Thus, simply heating a methanol soln. of an aldehyde, an amine, and an alpha -isocyanoacetamide provided 5-aminooxazoles, e.g., I, in good t ...

2002

Reaction of Ru-3(CO)(12) with supermesityldiphosphene: a new type of reaction of a Group 8 transition metal carbonyl with a diphosphene

Paul Joseph Dyson

The reaction of (E)-bis(2,4,6-tri-tert-butylphenyl)diphosphene with Ru-3(CO)(12) results in cleavage of the P=P bond with concomitant C-H activation of one of the t-butyl groups to form Ru-3(mu-H)(2)(CO)(8)(mu-P-C6H2-2,4-Bu-t(2)-6-CMe2CH2)(2). The H-atoms ...

2002

Interfacial Electron-Transfer Dynamics in Ru(tcterpy)(NCS)3-Sensitized TiO2 Nanocrystalline Solar Cells

Ulf Anders Hagfeldt, Christophe Bauer

The anchoring of the ruthenium dye {(C4H9)4N}[Ru(Htcterpy)(NCS)3] (tcterpy = 4,4',4''-tricarboxy-2,2':6',2''-terpyridine), the so-called black dye, onto nanocryst. TiO2 films has been characterized by UV-visible and FTIR spectroscopies. FTIR spectroscopy d ...

2002

Aspects of aqueous ruthenium(II) chemistry

André Merbach, Gabor Laurenczy, Pascal Grundler

Since the first facile synthesis of Ru(H2O)(6)(2) was published at the beginning of the eighties, several Ru-II aqueous inorganic and organometallic complexes were described, showing the increasing interest in this kind of compound due to potential ...

2001

Towards an easy carbon dioxide reduction in aqueous solution

Gabor Laurenczy

The homogeneous hydrogenation of carbon dioxide into formate anion has been investigated in aqueous solution, using water soluble ruthenium(II)-phosphine (meta-monosulphonated triphenylphosphine, TPPMS; and 1,3,5-triaza-7-phosphaadamantane, PTA) complexes ...

2000

Electrochemical promotion of Rh catalyst in gas-phase reduction of NO by propylene

Christos Comninellis, György Foti

The concept of nonfaradaic electrochem. modification of catalytic activity (NEMCA) was applied for the in situ control of catalytic activity of a rhodium film deposited on YSZ (yttria stabilized zirconia) solid electrolyte towards redn. of 1000 ppm NO by 1 ...

2000

Modelling kinetics of diffusion controlled reactive wetting: the role of reaction behind the triple line

Andreas Mortensen

Sessile drop experiments on metal/ceramic systems have shown that an important improvement in wetting may be produced by introduction of alloying elements which form, by reaction at the metal/ceramic interface, a continuous layer of solid that is better we ...

Scitec Publications Ltd.2000

The water-soluble tertiary phosphine complex of ruthenium(II), [RuCl2(PTA)(4)], (PTA. 1,3,5-triaza-7-phosphaadamantane) was used as catalyst precursor for hydrogenation of CO2 and bicarbonate in aqueous solution, in the absence of amine or other additives, ...

2000

After treatment with an appropriate base (butyllithium or sodium amide), 2-alkenyltris(2-methoxymethoxyphenyl)phosphonium salts carrying an allyl, crotyl, or prenyl (3-methyl-2-butenyl) side chain condense with satd. or unsatd. aldehydes to give conjugated ...

2000