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Showing 1 to 7 of 7 for “"cavitands"”.
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Water-Soluble Deep-Cavity Cavitands: Synthesis, Molecular Recognition, and Interactions with Phospholipid Membranes
<p>Water-soluble deep-cavity cavitands provide a rare opportunity to study self-assembly driven by the hydrophobic effect. These molecular hosts dimerize in the presence of certain guest molecules to form water-soluble molecular capsules. These systems have given rise to numerous novel chemical …
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Folding-Promoted Reactivity and Tunable Structure of Pyridine-Containing M-Phenylene Ethynylene Helical Cavitands
In one study, a hydrogen bonding interaction between adjacent monomer units is shown to stabilize the folded conformation of a PE oligomer. Subsequent studies focus on the incorporation of pyridine rings into the chain sequence. The pKa value of the pyridine nitrogen can be modulated either by …
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Synthesis and host-guest interaction of cage-annulated podands, crown ethers, cryptands, cavitands and non-cage-annulated cryptands.
… behavior. A series of cage-annulated cryptands, cavitands and the corresponding non-cage-annulated model compounds have been synthesized. These host molecules display unusual behavior when examined by using ESI-MS techniques, i.e., they bind selectively to smaller alkali metal ions (i.e., Li+ and …
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Synthesis and single-molecule force spectroscopy of supramolecular capsules
… dynamics of supramolecular capsules based on cavitands and calix[4]arenes is investigated. In the first part, large supramolecular coordination cages have been prepared by metal-directed self-assembly of functionalized cavitands. The synthesis of the hexameric coordination cage demonstrates, …
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Syntheses and structures of some polyoxomolybdates and polyoxotungstates
… to three-dimensional shapes including cryptands, cavitands and ultimately capsules, designed to encapsulate molecular hosts. Now the emphasis is shifting from structure to function, as researchers are trying to make the nanoscale capsules work for them. This is possible through the absolutely …
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Two New Resorcinarenes: A Pyridine & Acetic Acid Ligand for Metal Coordination and a Deep-Cavity Nitroquinoxaline Resorcinarene
… the upper rim of resorcinarene-based cavitands allows a variety of compounds to be synthesized from a single scaffold. Using the upper-rim moieties as ligands for a variety of transition metal ions further increases the versatility of this class of host compounds. A new …
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A study of cashew nut shell liquid purification and the synthesis of nonionic surfactants from the component phenols
… reaction, is also reported. Some studies with cavitands are also reported, including the synthesis of some novel macrocycles and some sugar transport studies.