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  • 1
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Complexes between Neutral Molecules, V.  -  Urea, Thiourea and Malodinitrile Complexes of Noncyclic Crown Type Polyethers with Pyridine N-Oxide SubunitsAcyclic crown type polyethers with one and two pyridine or pyridine-N-oxide nuclei as rigid donor units, have been synthesized. Their complexing behaviour is compared: The pyridine N-oxide ligands reveal reduced complexing ability towards alkali metal cations. The neutral molecules urea, thiourea and malodinitrile easily form stoichiometric complexes with both ligand systems.
    Notes: Acyclische Kronenetheranaloga mit ein und zwei Pyridin- oder Pyridin-N-oxid-Einheiten als starren Donorgruppen wurden synthetisiert. Ihr Komplexierungsverhalten gegenüber Alkalimetallkationen wird verglichen: Die N-Oxide bilden weniger leicht kristalline Komplexe. Mit den Neutralmolekülen Harnstoff, Thioharnstoff und Malonsäuredinitril wurden stöchiometrische Komplexe erhalten.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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