نتایج جستجو برای: rhenium

تعداد نتایج: 1716  

Journal: :Dalton transactions 2007
Wontae Noh Gregory S Girolami

Convenient methods to prepare solvated rhenium oxochlorides are described; these compounds should serve as useful starting materials for rhenium chemistry. Treatment of perrhenic acid, HReO(4), with chlorotrimethylsilane or with thionyl chloride, followed by addition of tetrahydrofuran, forms the new oxochloride complexes ReO(3)Cl(THF)(2) and ReOCl(4)(THF), respectively. Small amounts of two di...

Journal: :E3S web of conferences 2021

The relevance of the article does not raise any doubts, especially in context modern consumption rhenium. Rhenium is an industrial metal that has gained increasing recognition and widely used only Russia but also foreign countries, mainly form alloys with other elements, imparting special physicochemical properties to based on wolfram molybdenum. most popular addition molybdenum tungsten are re...

2016
Kokila Ranasinghe Shiroma Handunnetti Inoka C Perera Theshini Perera

BACKGROUND Re(I) tricarbonyl complexes exhibit immense potential as fluorescence imaging agents. However, only a handful of rhenium complexes have been utilized in biological imaging. The present study describes the synthesis of four novel rhenium complexes, their characterization and preliminary biological studies to assess their potential as biological imaging agents. RESULTS Four facial rh...

2009
Natalia Shtemenko Alexander Shtemenko

The novel antitumor system including cluster rhenium compounds and cisplatin (Re-Pt 4:1 system) has been recently presented [Anticancer Research, 2007]. The structural types of dirhenium(III) carboxylates with formulas Re2(RCOO)4Cl2, Re2(RCOO)3Cl3, cis-Re2(RCOO)2Cl4, trans-Re2(RCOO)2Cl4, Re2(HPO4)4Cl2, phosphates and mixed carboxylates – phosphates were the matter of concern. The binuclear clus...

Journal: :journal of mining and environment 2013
ali entezari mohammad karamoozian m eskandari nasab

the possibility of selective leaching process was investigated during molybdenite flue dust leaching to recover its rhenium content. the results show that addition of alcohols to water makes the medium less favorable for molybdenum transfer into aqueous phase. on the other hand, addition of small amounts of alcohols (5-15%) makes a noticeable separation of rhenium over molybdenum, but by increa...

Journal: :Dalton Transactions 2021

Salt metathesis reactions between a low-valent rhenium(i) complex and series of amidinate-supported tetrylenes led to rhenium metallotetrylenes with varying extents Re–E multiple bonding.

2017
Licia Uccelli Petra Martini Micol Pasquali Alessandra Boschi

Rhenium-188, obtained from an alumina-based tungsten-188/rhenium-188 generator, is actually considered a useful candidate for labeling biomolecules such as antibodies, antibody fragments, peptides, and DNAs for radiotherapy. There is a widespread interest in the availability of labeling procedures that allow obtaining 188Re-labeled radiopharmaceuticals for various therapeutic applications, in p...

Journal: :The Journal of chemical physics 2009
Jonathan T Lyon Philipp Gruene André Fielicke Gerard Meijer David M Rayner

The binding of carbon monoxide to iron, ruthenium, rhenium, and tungsten clusters is studied by means of infrared multiple photon dissociation spectroscopy. The CO stretching mode is used to probe the interaction of the CO molecule with the metal clusters and thereby the activation of the C-O bond. CO is found to adsorb molecularly to atop positions on iron clusters. On ruthenium and rhenium cl...

Journal: :Rheumatology 2007
R Klett U Lange H Haas M Voth J Pinkert

Hypertrophy and inflammation of the synovium with various underlying pathologies - such as rheumatoid arthritis, osteoarthritis, haemophilia and spondyloarthropathy - can be treated successfully by radiosynoviorthesis (RSO). For medium-sized joints (shoulder, elbow, wrist, hip and ankle), the radionuclide of choice is rhenium-186. We review the evidence for the efficacy of this local, relativel...

2009
Jonathan T. Lyon Philipp Gruene André Fielicke Gerard Meijer David M. Rayner

The binding of carbon monoxide to iron, ruthenium, rhenium, and tungsten clusters is studied by means of infrared multiple photon dissociation (IR-MPD) spectroscopy. The CO stretching mode is used to probe the interaction of the CO molecule with the metal clusters and thereby the activation of the C–O bond. CO is found to adsorb molecularly to atop positions on iron clusters. On ruthenium and r...

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