نتایج جستجو برای: ru

تعداد نتایج: 10145  

Journal: :Molecules 2017
Danielle C A S de Santana Karina Dias Joel G Souza Abayomi T Ogunjimi Marina C Souza Roberto S Silva Renata F V Lopez

Ruthenium (Ru) complexes have been studied as promising anticancer agents. Ru nitrosyl complex (Ru-NO) is one which acts as a pro-drug for the release of nitric oxide (NO). The Ru-aqueous complex formed by the exchange of NO for a water molecule after NO release could also possess therapeutic effects. This study evaluates the influence of iontophoresis on enhancing the skin penetration of Ru-NO...

Journal: :Faraday discussions 2012
Brian W Cohen Dmitry E Polyansky Patrick Achord Diane Cabelli James T Muckerman Koji Tanaka Randolph P Thummel Ruifa Zong Etsuko Fujita

Two isomers, [Ru(1)]2+ (Ru = Ru(bpy)2, bpy = 2,2'-bipyridine, 1 = 2-(pyrid-2'-yl)-1-azaacridine) and [Ru(2)]2+ (2 = 3-(pyrid-2'-yl)-4-azaacridine), are bioinspired model compounds containing the nicotinamide functionality and can serve as precursors for the photogeneration of C-H hydrides for studying reactions pertinent to the photochemical reduction of metal-C1 complexes and/or carbon dioxide...

2011
Renat Kadyrov Anna Rosiak

The present work describes the robust synthesis of Ru alkylidene complexes (PCy(3))(2)Cl(2)Ru=CHR - precursors for metathesis catalysts. Moreover, the dynamic behavior of complexes where R = 2-naphthyl and 2-thienyl was studied. (1)H NMR techniques were employed to establish the preferred conformations in solution for both complexes and the energy barrier for rotation around single (Ru=)CH-C(th...

2012
Omar bin Shawkataly Siti Syaida Sirat Ching Kheng Quah Hoong-Kun Fun

The title triangulo-triruthenium(0) compound, [Ru(3)(C(30)H(32)P(2))(CO)(10)], contains a triangle of singly bonded Ru atoms. The phosphane-bridged Ru-Ru distance [2.9531 (2) Å] is significantly longer than the non-bridged Ru-Ru distances [2.8842 (2) and 2.8876 (2) Å] . The bis-(diphenyl-phosphan-yl)hexane ligand bridges the Ru-Ru bond. Each phosphane-substituted Ru atom bears one equatorial an...

Journal: :Inorganic chemistry 2008
Nina Herzmann Anja-Verena Mudring Gerd Meyer

The first example for an endohedral transition-metal atom (Ru) sequestered in a seven-coordinate surrounding of rare-earth metal atoms (Pr) has been found for {RuPr3}Cl3. The monocapped trigonal prisms of Pr atoms share two rectangular faces, forming a zigzag chain with Ru-Ru distances of 308 pm. Intracluster bonding is dominated by Ru-Pr bonding with very little Ru-Ru bonding.

Journal: :Dalton transactions 2015
Keita Nakanishi Tomomi Koshiyama Soichi Iba Masaaki Ohba

A new lipophilic Ru salen complex with cholesterol groups can be efficiently incorporated into liposome bilayers, allowing the photoinduced release of nitric oxide (NO) and the membrane transport of NO to coexisting liposomes.

2015
Tanja M Laine Markus D Kärkäs Rong-Zhen Liao Per E M Siegbahn Björn Åkermark

Insight into how H2 O is oxidized to O2 is envisioned to facilitate the rational design of artificial water oxidation catalysts, which is a vital component in solar-to-fuel conversion schemes. Herein, we report on the mechanistic features associated with a dinuclear Ru-based water oxidation catalyst. The catalytic action of the designed Ru complex was studied by the combined use of high-resolut...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم پایه دامغان - دانشکده شیمی 1391

هدف اصلی در این پژوهش مطالعه کوانتومی روی ابرمولکولی است که به طور موثر و کارآمدی بتواند هنگامی که برانگیختگی توسط فوتون صورت می گیرد، الکترون را منتقل کند. ابرمولکول سه تایی 3](bpy) (cx)2-[m(ii) که در آن os]، ru، m=feو c60, c80 [x = از خود آرایی گونه های الکترون گیرنده (فولرین) و گونه های الکترون دهنده (m(ii)(bpy)3) تشکیل می شود. محاسبات با درنظر گرفتن پارامتر های وان دروالسی و غیروان دروالسی ...

2005
Chang-Hung Chiang Jyh-Chen Chen

Ruthenium (Ru) doped lithium niobate (LiNbO3) single crystal was grown by the Czochralski method from a congruent melt composition. The color of the Ru: LiNbO3 was red and darkened with the increasing Ru concentration. The amount of Ru concentrated in the grown crystal gradually decreased along the pulling direction because the effective segregation coefficient of Ru in lithium niobate is great...

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