نتایج جستجو برای: 2 bipyridinium
تعداد نتایج: 2525372 فیلتر نتایج به سال:
A reconstituted myoglobin with a synthetic cofactor having anionic binding sites effectively works as a photocatalyst for hydrogen generation in the presence of monomethylated bipyridinium.
Deprotonation of the two terminal COOH groups on a 4,4'-bipyridinium linear derivative leads to a pronounced slow down on the kinetics of threading and unthreading by the cucurbit[7]uril host.
A benzoquinone monolayer-functionalized electrode reveals electrochemically or chemically controlled wettability; the hydrophobicity of the hydroquinone-modified surface is enhanced by the presence of a donor-acceptor complex with N,N'-dimethyl-4,4'-bipyridinium as the pi-electron acceptor.
Abstract Heteroditopic calix[6]arenes are extensively exploited as synthetic receptors and molecular components of supramolecular threaded interlocked structures. We describe the synthesis two novel calix[6]arene macrocycles, upper rim which is functionalized with either or three phenylthioureido groups. These moieties excellent hydrogen‐bond donors largely affect conformation macrocycle, both ...
An excitation-wavelength-dependent luminescence behavior of a bipyridinium derivative, together with its luminescence switching between single- and dual-emissions upon reversible solid state structural transformation, has been presented.
A monocationic plug-socket connector that is composed, at the molecular level, of three components, (1) a secondary dialkylammonium center (CH2NH2+CH2), which can play the role of a plug toward dibenzo[24]crown-8 (DB24C8), (2) a rigid and conducting biphenyl spacer, and (3) 1,4-benzo-1,5-naphtho[36]crown-10 (BN36C10), capable of playing the role of a socket toward a 4,4'-bipyridinium dicationic...
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