نتایج جستجو برای: dicationic 4

تعداد نتایج: 1303925  

Journal: :Dalton transactions 2014
Sanjay Pratihar Rupa Pegu Ankur Kanti Guha Bipul Sarma

The reactivity and stability of P(III)-N and P(III)≈N bonds will be different towards various solvents, bases, and acids because of their difference in bond strength due to different N-pπ-P-dπ donor bonding. For this, a P≈N containing Pd(II) complex, [Pd(DPAP)2] (C1), was synthesized from the reaction between PdCl2(COD) (COD = 1,4-cyclooctadiene) and 2 equiv. DPAP (diphenyl phosphino amino pyri...

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2009
Xin Ming Wujian Ju Huali Wu Richard R Tidwell James E Hall Dhiren R Thakker

The antiparasitic activity of aromatic diamidine drugs, pentamidine and furamidine, depends on their entry into the pathogenic protozoa via membrane transporters. However, no such diamidine transporter has been identified in mammalian cells. The goal of this study is to investigate whether these dicationic drugs are substrates for human organic cation transporters (hOCTs, solute carrier family ...

Journal: :Antimicrobial agents and chemotherapy 2011
Angela Nehrbass-Stuedli David Boykin Richard R Tidwell Reto Brun

Dicationic diamidines, such as diminazene and pentamidine, are well-studied chemotherapeutic agents with significant activity against parasitic diseases. The in vitro activities of novel diamidine compounds against the Babesia divergens strains 1903B and 4201 were investigated. The most potent compound, a diphenyl furan, had a 50% inhibitory concentration (IC(50)) of 1.5 ng/ml. In a murine mode...

Journal: :Chemical communications 2007
Yonghua Ling Wei Wang Angel E Kaifer

The dicationic guest 2,7-dimethyldiazaphenanthrenium forms a fluorescent inclusion complex with the cucurbit[8]uril host, which can be used to effectively bind and detect indole derivatives, such as serotonin and tryptophan.

Bijan Mombeni Goodajdar, Maryam Keshtibanian

In this study, a novel acidic magnetic dicationic ionic liquid was prepared in three steps to serve as a green  catalyst  in  organic  synthesis.  The  newly  synthesized  catalyst  was  characterized UV- VIS,  and  VSM  analysis.  Additionally,  the  decomposition  steps  acatalyst  were investigated by thermal  analysis  techniques  (TGA/DSC).  The  synthesized  acidic magnetic dication...

An efficient and eco-friendly protocol for the synthesis of quinoxaline derivatives employing a condensation reaction between 1,2-diketone and 1,2-diaminobenzene derivative has been developed. The reaction of  1,2-diketone and 1,2-diaminobenzene derivative was carried out in water at room temperature using 10 mol% of task-specific dicationic ionic liquid as a catalyst. The results show that...

Journal: :The Journal of chemical physics 2012
V Sekushin R Püttner R F Fink M Martins Y H Jiang H Aksela S Aksela G Kaindl

High-resolution normal Auger-electron spectra of carbonyl sulfide subsequent to S 2p(-1) photoionization at photon energies of 200, 220, and 240 eV are reported along with corresponding photoelectron spectra. In addition, theoretical results are presented that take the core-hole orientation of the various spin-orbit-split and molecular-field-split S 2p(-1) states into account. Auger transitions...

2017
Roman Nevshupa Marcello Conte Silvia Guerra Elisa Roman

Dynamic tribochemical processes for dicationic ionic liquid containing a geminal imidazolium cation head group bridged by a poly(ethylene glycol) and a bis(trifluoromethylsulfonyl)imide anion were studied using time-resolved mechanically stimulated gas emission mass-spectrometry (MSGE-MS). In comparison with similar monocationic imidazolium ionic liquids with short alkyl or long polyether side ...

Journal: :Angewandte Chemie 2021

Using the chelating C,C′-bis(silylenyl)-ortho-dicarborane ligand, 1,2-(RSi)2-1,2-C2B10H10 [R=PhC(NtBu)2], leads to monoatomic zero-valent Ge complex (“germylone”) 3. The redox non-innocent character of carborane scaffold has a drastic influence on reactivity 3 towards reductants and oxidants. Reduction with one molar equivalent potassium naphthalenide (KC10H8) causes facile oxidation Ge0 GeI al...

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