title: Multicore iron oxide mesocrystals stabilized by a poly(phenylenepyridyl) dendron and dendrimer: role of the dendron/dendrimer self-assembly.
abstract: 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.
authors: Department of Chemistry and ‡Department of Biology, Indiana University , Bloomington, Indiana 47405, United States.
authors: David Gene
authors: DG
authors: Morgan
authors: Bethany S
authors: BS
authors: Boris
authors: Nina V
authors: NV
authors: Kuchkina
authors: Ekaterina Yu
authors: EY
authors: Yuzik-Klimova
authors: Svetlana A
authors: SA
authors: Sorokina
authors: Barry D
authors: BD
authors: Stein
authors: Dmitri I
authors: DI
authors: Svergun
authors: Alessandro
authors: A
authors: Spilotros
authors: Athanasia
authors: A
authors: Kostopoulou
authors: Alexandros
authors: A
authors: Lappas
authors: Zinaida B
authors: ZB
authors: Shifrina
authors: Lyudmila M
authors: LM
authors: Bronstein
mesh_terms: D000873:Anthracenes / Q000737:chemistry*; D050091:Dendrimers / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D013696:Temperature
chemical_list: D000873:Anthracenes; D050091:Dendrimers; D005290:Ferric Compounds; C501244:dendron; C000499:ferric oxide