نتایج جستجو برای: 4 bipyridinium
تعداد نتایج: 1303753 فیلتر نتایج به سال:
This paper presents the synthesis, the structural determination and the sensing capabilities toward Volatile Organic Compounds (VOCs) of a new class of fluorescent indolizine-cyclodextrin sensors. Two different pathways, both involving bipyridinium ylides and 6-amino-b-cyclodextrin, have been used to carry out the synthesis of these sensors. The macrocycle structures were dominantly established...
The 1:1 and 2:1 cocrystals of benzene-1,2,4,5-tetracarboxylic acid (BTA) and 4,40-bipyridine (BPY) have been studied using neutron diffraction at 215 and 20 K, respectively. BTA and BPY crystallize in a 1:1 ratio with 1.8 molecules of water, viz. 4,40-bipyridinium 2,5-dicarboxybenzene-1,4-dicarboxylate 1.8hydrate, C10H12N2 2+ C10H4O8 1.8H2O, (I), in the space group P1, with both BTA and BPY lyi...
The conformational properties of conjugated heteroaromatic bipyridines, pyridyl-pyridiniums and bipyridinium have been investigated using density functional theory (DFT). The molecules studied were neutral 2,20-bipyridine (2,20-bpy), 2,30bipyridine (2,30-bpy) and 3,30-bipyridine (3,30-bpy) and the singly protonated 3-pyridyl-20-pyridinium (3-py-20-pyH) and 2pyridyl-20-pyridinium (2-py-20-pyH) a...
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...
Many cellular processes in living organisms are regulated by complex regulatory networks, built from noncovalent interactions between relatively few proteins that perform their functions switching homo- and heterooligomeric assemblies or mono- bivalent states. Herein, we demonstrate the conjugation of a 4,4'-bipyridinium scaffold to basic region GCN4 bZip transcription factor can be exploited c...
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