Results 1 to 10 of about 1,117,391 (197)
Isolation of a Californium(II) Crown-Ether Complex
Nature Chemistry, 2022 Californium (Z = 98) is the first member of the actinide series displaying metastability of the 2+ oxidation state. Understanding the origin of this chemical behavior requires characterizing Cf(II) materials, but isolating a complex with this state has remained elusive.
Todd N. Poe +12 more
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Conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers [PDF]
STED Journal, 2020 The conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers in different solvents has been investigated. In this paper, the complexation reaction of macrocyclic ligand, 18-crown-6 (18C6), dibenzo-18-crown-6 (DB18C6)
Edita Bjelić +3 more
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Investigation of the stability of azacrown complexes with some transition metal ions [PDF]
مجله علوم و فنون هستهای, 2020 The separation of metal ions from nuclear waste is an important issue in the nuclear industry. Cyclic chemical compounds including ether groups are called crown ethers. These compounds strongly bind to certain cations, forming complexes.
M. Arabieh +3 more
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Molecules, 2023 Positively charged metal–ammonia complexes are known to host peripheral, diffuse electrons around their molecular skeleton. The resulting neutral species form materials known as expanded or liquid metals.
Zhongyuan Lu +2 more
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Entropy, 2021 The analysis of the ratios of entropy and enthalpy characteristics and their contributions to the change in the Gibbs energy of intermolecular interactions of crown ethers and cyclodextrins with amino acids is carried out.
Tatyana Usacheva +6 more
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Chemistry Proceedings, 2023 A convenient method for obtaining a new type of molecular clips based on diazacrown or diamino-dibenzocrown ethers with two calixarene molecules attached to a central fragment using an amide bond was developed.
Ekaterina Kulygina +3 more
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A Review of the Thermodynamics of Complexation of Crown Ethers With Metal Ion [PDF]
Journal of Advances in Environmental Health Research, 2023 Recently, macrocyclic and supramolecular chemistry has reached a hopeful area of research in the mutual interaction between chemistry, physics and biology. Charles J.
Fariborz Nasri
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Komplexchemie von Molekülen mit hydrophilen und lipophilen Hohlräumen und Pseudohohlräumen
CHIMIA, 1979 Molecules forming cavities suited for inclusion of ions or of neutral molecules are described: Open chain oligoethylene glycol ethers with and without rigid donor end groups are shown to complex alkali/alkaline earth metal ions and neutral molecules ...
Fritz Vögtle
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Synthesis, Biological Evaluation, and Molecular Modeling of Aza-Crown Ethers
Molecules, 2021 Synthetic and natural ionophores have been developed to catalyze ion transport and have been shown to exhibit a variety of biological effects. We synthesized 24 aza- and diaza-crown ethers containing adamantyl, adamantylalkyl, aminomethylbenzoyl, and ε ...
Stepan S. Basok +9 more
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Supramolecular Complexation of Carbon Nanostructures by Crown Ethers [PDF]
The Journal of Organic Chemistry, 2017 Since their discovery, crown ethers as well as the most recent carbon nanostructures, namely fullerenes, carbon nanotubes, and graphene, have received a lot of attention from the chemical community. Merging these singular chemical structures by noncovalent forces has provided a large number of unprecedented supramolecular assemblies with new geometric ...
Luis Moreira +2 more
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