Multicore iron oxide mesocrystals stabilized by a poly(phenylenepyridyl) dendron and dendrimer : role of the dendron/dendrimer self-assembly

We report the formation of multicore iron oxide mesocrystals using the thermal decomposition of iron acetyl acetonate in the presence of the multifunctional and rigid poly(phenylenepyridyl) dendron and dendrimer. We thoroughly analyze the influence of capping molecules of two different architectures...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 30(2014), 28 vom: 22. Juli, Seite 8543-50
1. Verfasser: Morgan, David Gene (VerfasserIn)
Weitere Verfasser: Boris, Bethany S, Kuchkina, Nina V, Yuzik-Klimova, Ekaterina Yu, Sorokina, Svetlana A, Stein, Barry D, Svergun, Dmitri I, Spilotros, Alessandro, Kostopoulou, Athanasia, Lappas, Alexandros, Shifrina, Zinaida B, Bronstein, Lyudmila M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Anthracenes Dendrimers Ferric Compounds dendron ferric oxide 1K09F3G675
Beschreibung
Zusammenfassung:We report the formation of multicore iron oxide mesocrystals using the thermal decomposition of iron acetyl acetonate in the presence of the multifunctional and rigid poly(phenylenepyridyl) dendron and dendrimer. We thoroughly analyze the influence of capping molecules of two different architectures and demonstrate for the first time that dendron/dendrimer self-assembly leads to multicore morphologies. Single-crystalline ordering in multicore NPs leads to cooperative magnetic behavior: mesocrystals exhibit ambient blocking temperatures, allowing subtle control over magnetic properties using a minor temperature change
Beschreibung:Date Completed 11.05.2015
Date Revised 19.11.2015
published: Print-Electronic
Citation Status MEDLINE
ISSN:1520-5827
DOI:10.1021/la502409r