Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Jörg Beger"'
Publikováno v:
Zeitschrift für Chemie. 28:1-14
Due to their pronounced complexing properties and selective solubilities lipophilic crown compounds can be used as effective extractants for metal ions. Structure modification of those compounds allows the directed influencing of complex-forming tend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::270749b1a921fad9ee569bc0762a46b6
https://doi.org/10.1002/zfch.19880280102
https://doi.org/10.1002/zfch.19880280102
Autor:
Jörg Beger, Karsten Gloe
Publikováno v:
Zeitschrift für Chemie. 26:315-325
Lipophilic crown ethers are useful for metal ion extraction: they are soluble in organic phases and insoluble in aqueous ones. The lipophilicity can be enhanced by long-chain hydrocarbon residues, by expanding the carbon content in the crown skeleton
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a92d35fb88688bdb6ba68659bbe71c64
https://doi.org/10.1002/zfch.19860260903
https://doi.org/10.1002/zfch.19860260903
Publikováno v:
Transition Metal Chemistry. 27:295-298
A large number of derivatives of the diaza-18-crown-6 ligand have been synthesized and characterized. These derivatives have different alkyl or aryl side arms at the nitrogen donor atoms of the macrocyclic diazacrown ether. In some side chains additi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5310d0249e70938b417a5102576a59a9
https://doi.org/10.1023/a:1014850522438
https://doi.org/10.1023/a:1014850522438
Publikováno v:
Journal of Solution Chemistry. 23:53-61
The formation of complexes between crown ethers and acetonitrile, chloroform, and nitromethane were investigated in carbon tetrachloride at 25°C. A significant influence of the ring size on the selectivity of the host is evident. The host 18-crown-6
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4675e9c6f5a74c6b1614b7867f84219b
https://doi.org/10.1007/bf00972607
https://doi.org/10.1007/bf00972607
Publikováno v:
Journal f�r Praktische Chemie/Chemiker-Zeitung. 336:5-10
Influence of Aryl-bonded Substituents on Complex Formation of Benzocrown Ethers with Alkali Metal Ions in Methanol and Acetone Solutions The influence of aryl-bonded substituents upon the complex formation of monobenzocrown ethers towards alkali meta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::273ad57e243ccfab60d8affdfa66b24d
https://doi.org/10.1002/prac.19943360103
https://doi.org/10.1002/prac.19943360103
Publikováno v:
Angewandte Makromolekulare Chemie. 199:103-117
Komplexbildner fur Kupfer, die als Nachweisreagenzien in der Analytik und als Reagenzien fur die Flussig-Flussig-Extraktion interessant sind, wurden als Kupferdesaktivatoren in vernetztem Polyethylen niedriger Dichte (XLDPE) durch Bestimmung der Indu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1dad19afb1e10c91942b5c70b18e9bd
https://doi.org/10.1002/apmc.1992.051990109
https://doi.org/10.1002/apmc.1992.051990109
Publikováno v:
Colloids and Surfaces. 60:275-289
The equilibrium interfacial tensions at the octane/water and toluene/water interfaces containing some model derivatives of α,ω-diamino oligoethers are determined and interpreted. The influence of the compounds' structures upon their distribution be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2287cb3027147207e2324580175d968f
https://doi.org/10.1016/0166-6622(91)80282-s
https://doi.org/10.1016/0166-6622(91)80282-s
Publikováno v:
Solvent Extraction and Ion Exchange. 9:435-458
The extraction of strontium picrate with various open-chain ether dicarboxylie acid diamides, ether dicarboxylie monoamido acids and N-alkyl imino diacetic diamides has been investigated. The influence of pH, diluents and counter anions on the extrac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb2eb69035435f318b7882b59b4ee3e6
https://doi.org/10.1080/07366299108918063
https://doi.org/10.1080/07366299108918063
Publikováno v:
Solvent Extraction and Ion Exchange. 9:459-469
The extraction properties of ami do podands 1 - 3_ have been investigated. The ether dicarboxylic acid diamide i shows a clear preference for the extration of rare earth metal ions Yb(III)-, La(III) and the alkaline-earth metal ions Ca(II), Sr(II) as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3965975498f75098ddfd08303e9666f4
https://doi.org/10.1080/07366299108918064
https://doi.org/10.1080/07366299108918064
Publikováno v:
Colloids and Surfaces. 57:295-305
Interfacial tension isotherms were determined in octane/water and toluene/water systems for some model palladium (II) extractants and accelerators containing sulphur and nitrogen atoms. The effects of compound structures and their polarity upon their
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f172216ac6f7d5d463f37da0c768e5a
https://doi.org/10.1016/0166-6622(91)80163-i
https://doi.org/10.1016/0166-6622(91)80163-i