Bilayer Molecular Electronics: All-Carbon Electronic Junctions Containing Molecular Bilayers Made with “Click” Chemistry
摘要:
Bilayer molecular junctions were fabricated by using the alkyne/azide "click" reaction on a carbon substrate, followed by deposition of a carbon top contact in a crossbar configuration. The click reaction on an alkyne layer formed by diazonium reduction permitted incorporation of a range of molecules into the resulting bilayer, including alkane, aromatic, and redox-active molecules, with high yield (>90%) and good reproducibility. Detailed characterization of the current-voltage behavior of bilayer molecular junctions indicated that charge transport is consistent with tunneling, but that the effective barrier does not strongly vary with molecular structure for the series of molecules studied.
Synthesis and characterization of palladium(II) and platinum(II) complexes with ferrocenylimidazole
作者:Vincent O. Nyamori、Douglas Onyancha、Cedric W. McCleland、Christopher Imrie、Thomas I.A. Gerber
DOI:10.1016/j.jorganchem.2008.12.041
日期:2009.4
The synthesis and characterization of ferrocenylimidazole complexes of platinum(II) and palladium(II) are described. Reaction of ferrocenylimidazoles with K2MCl4 (M = Pd, Pt) using a biphasic system of dichloromethane and ethanol/water provided the corresponding complexes 2a–2j in good yields. New synthetic routes for the synthesis of ferrocenylbenzylethers 2k–2o, bis(4-ferrocenylbenzyl)carbonate [2p]
Synthesis and Characterization of New Ferrocene-Containing Ionic Liquids
作者:Bhasem Gharib、Andreas Hirsch
DOI:10.1002/ejoc.201400061
日期:2014.7
synthesized by etherification of ferrocene methanol, acylation of ferrocene, and amide coupling of ferrocene carboxylic acid. The etherification was achieved by an acid-catalyzed procedure and very good yields of between 86–93 % were obtained. Next to the nature of the linkage itself, the lengths of the alkyl chains linking the ferrocenyl moiety and the imidazolium group and the nature of the counterions
Synthesis, characterisation and properties of ferrocenylalkylimidazolium salts
作者:Vincent O. Nyamori、Mhleli Gumede、Muhammad D. Bala
DOI:10.1016/j.jorganchem.2010.01.019
日期:2010.4
New ferrocenylalkylimidazolium salts [Fc(CH2)n(C3H3N2)R]X− were synthesised through the incorporation of green chemistry principles of atom economy and when feasible under solvent-free conditions. The products comprise a series of salts all characterised by the ferrocenyl moiety with variations in the length of the linker alkyl chain (n), the size of the imidazolium alkyl substituent (R) or the electronic
新ferrocenylalkylimidazolium盐[的Fc(CH 2)Ñ(C 3 H ^ 3 Ñ 2)- [R ] X -是通过的原子经济性的绿色化学原理的掺入和无溶剂的条件下时可行合成。该产品包括一系列盐的所有接头中的烷基链(长度与变化,其特征在于所述二茂铁基部分Ñ),咪唑烷基取代基(的大小- [R )或抗衡离子(的电子性质X -)。研究了盐的物理和电子性质对三个主要结构变体的依赖性。发现R基团的空间大小的变化对离子液体的熔点具有最深远的影响。通过IR,1 H和13 C NMR,MS和熔点测定法对化合物进行了全面表征。
Synthesis, in vitro antimalarial activities and cytotoxicities of amino-artemisinin-ferrocene derivatives
作者:Christo de Lange、Dina Coertzen、Frans J. Smit、Johannes F. Wentzel、Ho Ning Wong、Lyn-Marie Birkholtz、Richard K. Haynes、David D. N'Da
DOI:10.1016/j.bmcl.2017.12.057
日期:2018.2
these compounds were shown to possess activities in the low nM range with the most active being compound 6 with IC50 values of 2.79 nM against Pf K1 and 3.2 nM against Pf W2. Overall the resistance indices indicate that the compounds have a low potential for cross resistance. Cytotoxicities were determined with Hek293 human embryonic kidney cells and activities against proliferating cells were assessed
hepatotoxins. The most common detection and quantitation methods for these toxins are liquidchromatography with UV or mass spectrometric detections, phosphatase inhibition assays and enzyme-linked immunosorbent assays. In addition, derivatisation of these toxins with organic fluorophores followed by CE/laser induced fluorescence detection and HPLC/chemiluminescence detection; and with luminescent lanthanide
微囊藻毒素是一组低分子量的环肽肝毒素。这些毒素最常见的检测和定量方法是具有UV或质谱检测的液相色谱,磷酸酶抑制测定和酶联免疫吸附测定。此外,这些毒素先用有机荧光团衍生,然后进行CE /激光诱导的荧光检测和HPLC /化学发光检测;也已经报道了与发光镧系螯合剂用于竞争测定。然而,从未探索过将电化学活性单元用作微囊藻毒素的标签。由于6-二茂铁基己硫醇(Fc - C6 - SH)可与α,β-不饱和羰基进行容易的加成反应,该化合物已用作微囊藻毒素衍生物微囊藻毒素-LR(MC - LR)的氧化还原活性标记剂。结合物Fc - MC - LR已通过具有电化学检测功能的高效液相色谱法进行了分离。在20-400 ng的MC - LR测试范围内,峰高浓度曲线呈线性关系 (线性回归的r值> 0.9987)。检出限被确定为约。18 ng MC - LR (S / N =3)。同时,缀合物Fc - MC - LR也