نتایج جستجو برای: imidazolium salts

تعداد نتایج: 29631  

Journal: :Chemical communications 2015
L H Finger F Wohde E I Grigoryev A-K Hansmann R Berger B Roling J Sundermeyer

The reaction of methylcarbonate ionic liquids with H2S or H2Se offers a highly selective synthesis of analytically pure, well-defined and soluble hydrosulphide and hydroselenide organic salts of general interest. Among them, imidazolium hydrochalcogenides show an astonishingly high volatility for cation-aprotic ILs, which allows their quantitative sublimation below 100 °C/10(-2) mbar and actual...

Journal: :Dalton transactions 2012
Paul Marshall Robert L Jenkins William Clegg Ross W Harrington Samantha K Callear Simon J Coles Ian A Fallis Athanasia Dervisi

The butyl and isopropyl derivatives (4I, 5Br) of chiral pool derived bis-imidazolium dehydrohexitol salts have been prepared. The ditopic N-heterocyclic carbenes 4 and 5 form dinuclear Ag(I) and Pt(II) complexes. All compounds were fully characterised by multinuclear NMR spectroscopy. The bis-imidazolium salt 4I and platinum complexes cis-[Pt(2)(μ-2)(dmso)(2)Cl(4)] and cis-[Pt(2)(μ-4)(dmso)(2)C...

2015
Yingzhong Zhu Lufei Xiao Meng Zhao Jiazheng Zhou Qiong Zhang Hui Wang Shengli Li Hongping Zhou Jieying Wu Yupeng Tian

A new series of D-π-A type imidazole derivatives have been synthesized and characterized. Two corresponding imidazolium salts (iodine and hexafluorophosphate) were prepared from the imidazole compound. Their electron-withdrawing ability can be largely tunable by salt formation reaction or ion exchange. UV-vis absorption and single-photon fluorescence spectra have been systematically investigate...

2016
Shaojin Gu Jiehao Du Jingjing Huang Huan Xia Ling Yang Weilin Xu Chunxin Lu

A series of copper complexes (3-6) stabilized by 1,2,3-triazole-tethered N-heterocyclic carbene ligands have been prepared via simple reaction of imidazolium salts with copper powder in good yields. The structures of bi- and trinuclear copper complexes were fully characterized by NMR, elemental analysis (EA), and X-ray crystallography. In particular, [Cu2(L2)2](PF6)2 (3) and [Cu2(L3)2](PF6)2 (4...

Journal: :European Journal of Organic Chemistry 2021

In this article, we describe an efficient synthetic pathway and the characterization of liquid crystal luminescent imidazolium salts based on a naphthalene unit. The imidazolium-naphthalene rigid part is decorated with benzyl group functionalized by two or three dodecyloxy chains. A crystalline structure shows unambiguously segregation between ionic flexible parts conducive to emergence mesomor...

Journal: :Acta biochimica Polonica 2011
Izabela Rusiecka Andrzej C Składanowski

The multixenobiotic/multidrug resistance (MXR/MDR) system controls transport of foreign molecules across the plasma membrane as a preventive measure before toxicity becomes apparent. The system consists of an efflux pump, ABCB1, and/or a member of the ABCC family. Ionic liquids are broadly used solvents with several unique properties such as wide liquid range, negligible vapor pressure, good th...

2011
A. Trigui H. Boughzala A. Driss Y. Abid

The organic-inorganic hybrid, {(C(6)H(13)N(3))(2)[Pb(3)I(10)]}(n), was obtained by the reaction of 1-(3-ammonio-prop-yl)imidazolium triiodide and PbI(2) at room temperature. The structure contains one-dimensional {[Pb(3)I(10)](4-)}(n) polymeric anions spreading parallel to [001], resulting from face-face-edge association of PbI(6) distorted octa-hedra. One of the Pb(II) cations is imposed at an...

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