نتایج جستجو برای: ruthenium

تعداد نتایج: 8195  

2011
S. Arunachalam N. Padma Priya C. Jayabalakrishnan V. Chinnusamy

Department of Chemistry, Kongunadu Arts and Science College, Coimbatore – 641029, India Post Graduate and Research Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore – 641020, India. ABSTRACT: Six new organosoluble ruthenium(II) complexes bearing dibasic tetradentate Schiff base ligands of the general formula [Ru(CO)(PPh3)(L)] (where L = dibasic t...

1999
Debadeep Bhattacharyya Soma Chakraborty Pradip Munshi Goutam Kumar Lahiri

II 1 A group of five new ruthenium(II) bipyridine heterochelates of the type [Ru (bpy) L] 1a–1e have been synthesized (bpy52,292 bipyridine; L5anionic form of the thiol-based imine ligands, HS–C H N=C(H)C H (R) (R5OMe, Me, H, Cl, NO ). The complexes 6 4 6 4 2 1a21e are 1:1 conducting and diamagnetic. The complexes 1a21e exhibit strong MLCT transitions in the visible region and intra-ligand tran...

Journal: :Angewandte Chemie 2023

Photocatalysis. In their Communication (e202304474), Markus R. Heinrich et al. demonstrate the linkage of ruthenium photocatalysis with chemiluminescence read-out from a 1,2-dioxetane. The ruthenium-dioxetane system was shown to be useful for quantification optical input by inverse correlation output.

Journal: :Molecules 2009
Zhiwen Xi Wenyan Hao Pingping Wang Mingzhong Cai

Ruthenium(III) chloride-catalyzed acylation of a variety of alcohols, phenols, and thiols was achieved in high yields under mild conditions (room temperature) in the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF(6)]). The ionic liquid and ruthenium catalyst can be recycled at least 10 times. Our system not only solves the basic problem of ruthenium catalyst reuse, but ...

Journal: :Physical chemistry chemical physics : PCCP 2011
Shunichi Fukuzumi Satoshi Kato Tomoyoshi Suenobu

Bismuth vanadate (BiVO(4)), which is a visible-light responsive heterogeneous photocatalyst, was combined with homogeneous ruthenium complexes to increase the overall photocatalytic reactivity for water oxidation with a one-electron oxidant, [Co(III)(NH(3))(5)Cl](2+). Photoinduced electron transfer from the excited state of ruthenium(II) complexes to [Co(III)(NH(3))(5)Cl](2+) affords ruthenium(...

Journal: :Inorganic chemistry 2005
Henk J Bolink Luca Cappelli Eugenio Coronado Pablo Gaviña

A terpyridine ruthenium (II) complex containing a substituted and an unsubstituted terpyridine ligand was synthesized, and its luminescence properties were studied in a solid-state single-layer light-emitting electrochemical cell. The obtained devices emitted light of a very deep red color (CIE, x = 0.717 y = 0.282) at low external applied bias. It is the first example of an electroluminescence...

2000
Prasanta Kumar Sinha Larry R. Falvello Shie-Ming Peng Samaresh Bhattacharya

Reaction of three phenolate ligands, viz. 2,4,6-tribromophenol (HL, where H stands for the phenolic proton), 2-nitrophenol (HL) and 2,4,6-trinitrophenol (HLO), with [Ru(PPh3)3Cl2] in a 2:1 molar ratio in the presence of a base gives complexes of type [Ru(PPh3)2(L)2] (L=L , L and L). The 2,4,6-tribromophenolate ligand (L) binds to ruthenium as a bidentate O,Br-donor, while the 2-nitrophenolate l...

Journal: :Angewandte Chemie 2002
Jiang-Lin Liang Shi-Xue Yuan Jie-Sheng Huang Wing-Yiu Yu Chi-Ming Che

2009
Sergey S. Shapovalov Bruno Therrien

In the title complex, [RuSn(2)(C(10)H(14))Cl(6)(C(6)H(15)O(3)P)], the Ru-Sn bond lengths [2.5619 (3) and 2.5669 (3) Å] are about 0.3 Å shorter than the sum of the covalent Ru and Sn radii (1.46 + 1.39 = 2.85 Å), in line with other structurally characterized arene ruthenium trichlorido-stannyl derivatives. The Ru(II) atom is surrounded by a para-cymene, a triethylphosphite and two trichloridosta...

Journal: :Organic letters 2006
Ryoichi Kuwano Manabu Kashiwabara

Highly enantioselective hydrogenation of various N-Boc-indoles proceeded successfully in the presence of the ruthenium complex generated from an appropriate ruthenium precursor and a trans-chelate chiral bisphosphine PhTRAP. Various 2- or 3-substituted indoles were converted into chiral indolines with high enantiomeric excesses (up to 95% ee). The PhTRAP-ruthenium catalyst was able to promote t...

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