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Concerningbay salt andperi chelate formation of hydroxyphenanthroperylene quinones (fringelites)

Zur Salz- und Chelatbildung bei Hydroxyphenanthroperylenchinonen (Fringeliten)

  • Anorganische Und Physikalische Chemie
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Summary

The bathochromic shifts in the diffuse reflectance UV/Vis spectra of certain fringelite containing fossil species and the exceptional chemical stability of the fringelites and their resistance against leaching on a geological time scale can be understood from the unique complexation behavior of the fringelites with transition metal ions. According to an absorption spectroscopic study of the model system fringelite D-alkaline earth metal and transition metal ions, the fringelites are able to formperi chelate complexes. In addition, fringelites bearingbay hydroxyl groups are able to form polymeric phenolates with transition metal ions as well as with alkaline earth metal ions. This behavior leads to a complex network lattice consisting of these polymeric chains crosslinkedvia chelate coordination at theperi regions to transition metal ions like iron.

Zusammenfassung

Die bathochromen Verschiebungen in den diffusen Reflexionsspektren gewisser Fringelit enthaltender Fossilien sowie die ungewöhnliche chemische Stabilität der Fringelite und deren Widerstandsfähigkeit gegen Auswaschung innerhalb geologischer Zeiträume können aus dem ausgeprägten Komplexierungsverhalten der Fringelite mit Übergangsmetallionen verstanden werden. Aus der absorptionsspektroskopischen Studie des Modellsystems Fringelit D-Erdalkali- und Übergangsmetallionen wird abgeleitet, daß die Fringelite fähig sind,peri-Chelate zu bilden. Zusätzlich dazu können Fringelite, die überbay-Hydroxylgruppen verfügen, polymere Salze mit Erdalkali- und Übergangsmetallionen bilden. Dies führt zu einem komplexen Gitterwerk, das aus diesen polymeren Ketten, welche durch die Chelierung mit Übergangsmetallionen im Bereich derperi-Hydroxylgruppen vernetzt sind, besteht.

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Authors and Affiliations

  1. Institut für Chemie, Johannes Kepler Universität, A-4040, Linz, Austria

    H. Falk & E. Mayr

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  1. H. Falk
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  2. E. Mayr
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Falk, H., Mayr, E. Concerningbay salt andperi chelate formation of hydroxyphenanthroperylene quinones (fringelites). Monatsh Chem 128, 353–360 (1997). https://doi.org/10.1007/BF00810771

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  • DOI: https://doi.org/10.1007/BF00810771

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