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Items for "Crown ether"

Crystal structures of the [18]-crown-6 ammoniate C12H24O6 · 2 NH3 and the cryptand [2.2.2] ammoniate C18H36O6N2 · 2 NH3

The crystal structures of the new polyether ligand-ammoniates C12H24O6 · 2 NH3 (1) and C18H36O6N2 · 2 NH3 (2) have been elucidated at 123 K by single crystal X-ray structure analysis...

Keywords: Supramolecular chemistry, Hydrogen bond, Low temperature crystal structure analysis, Ammonia, Crown ether

02/2006 | Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag
Extraction of short-lived zirconium and hafnium isotopes using crown ethers: A model system for the study of rutherfordium

The extraction of zirconium and hafnium from hydrochloric acid media was studied using the crown ethers dibenzo-18-crown-6 (DB18C6), dicyclohexano-18-crown-6 (DC18C6) and dicyclohexano-24-crown-8 (DC24C8) as extractants...

Keywords: Zirconium, Hafnium, Crown ether, Liquid-liquid extraction, Distribution ratio

03/2006 | Radiochimica Acta, Oldenbourg Wissenschaftsverlag