نتایج جستجو برای: complex compounds

تعداد نتایج: 993258  

Journal: :Acta poloniae pharmaceutica 2010
Mariusz Stolarczyk Anna Maślanka Anna Apola Jan Krzek

This is a review of analytical methods, such as spectrophotometry, derivative spectrophotometry and various chromatographic (gas chromatography-GC, high-performance liquid chromatography-HPLC, thin-layer chromatography-TLC, high-performance thin-layer chromatography-HPTLC, liquid chromatography-tandem mass spectrometry-LC-MS, microchip electrophoresis-MCE, capillary electrophoresis-CE) and elec...

Journal: :Accounts of chemical research 2014
Jürgen Hafner Marian Krajčí

CONSPECTUS: Complex intermetallic compounds are a class of ordered alloys consisting of quasicrystals and other ordered compounds with large unit cells; many of them are approximant phases to quasicrystals. Quasicrystals are the limiting case where the unit cell becomes infinitely large; approximants are series of periodic structures converging to the quasicrystal. While the unique properties o...

Journal: :Journal of the American Chemical Society 2008
Rahul Palchaudhuri Vitaliy Nesterenko Paul J Hergenrother

Compounds incorporating the triphenylmethyl motif constitute an emerging family of potent anticancer agents. Although several small molecules containing this pharmacophore have now been identified, the mechanism of cell death induction for some of these compounds is unknown. In an effort to define their mechanism of action, and to distinguish subtypes within the group of compounds containing th...

Journal: :Dalton transactions 2009
Mitsuyoshi Ochiai Hisako Hashimoto Hiromi Tobita

Reactions of a neutral silyleneruthenium complex with ketones and aldehydes, and isolation of their agostic intermediates are reported, where an alpha-H abstraction or hydrosilylation of the carbonyl compounds occurs depending on the substituents of the substrates.

Journal: :Chemical communications 2013
Edward R Williams Rebecca M Leithall Robert Raja Mark T Weller

Copper chloropyrophosphate frameworks have been synthesised with a wide variety of complex inorganic anions trapped in a large, flexible, one-dimensional pore, with anions including chloride, bromide, phosphate and the complex metal halo-anions PtCl(4)(2-), PdBr(4)(2-), CuCl(4)(2-) and AuCl(4)(-).

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1386

12 لیگاند بازشیف از سالیسیل آلدیید و سالیسیل آلدییدهای استخلافی 3-، 4- و 5- متوکسی ، 5-کلرو و 5-برمو با دی آمین های 1 و 2-فنیلن، 1و3-پروپان و 1 و 2-اتیلن ساخته شد. کمپلکس های مسطح مربع نیکل ii این لیگاندها سنتز و شناسایی شدند. از محصولات افزایشی me2sncl2:[nin(l)])1:1 کمپلکس های فوق با دی متیل قلع دی کلراید ساخته شدند. کمپلکس me2snsalen سنتز و شناسایی گردید. کمپلکس سالن فلزات واسطه دو ظرفیتی منگ...

Journal: :The Journal of antimicrobial chemotherapy 2014
Likou Zou Jianghong Meng Patrick F McDermott Fei Wang Qianru Yang Guojie Cao Maria Hoffmann Shaohua Zhao

OBJECTIVES To examine the distribution of all genes known to be responsible for resistance to quaternary ammonium compounds (QACs), and their association with resistance to QACs and other antimicrobials, in Escherichia coli recovered from retail meats. METHODS A total of 570 strains of E. coli isolated from US retail meats in 2006 were screened for the presence of 10 QAC resistance genes [qac...

2013
Saleem Raza Yousaf Iqbal Iqbal Hussian Muslim Raza Syed Uzair Ali Shah Ajmal Khan Raheela Taj Abdur Rauf

The compounds containing the complex ion or complex molecule in which central metal atom or ion is surrounded by a number of oppositely charged ions or molecules are known as co-ordination compounds [1], complex compound or simply complex. Coordination basically refers to the "coordinate covalent bonds" (dipolar bonds) between the ligands and the central atom in 1914, when first coordination co...

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