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  Morphogenesis of Magnetite Mesocrystals: Interplay between Nanoparticle Morphology and Solvation Shell

Schlotheuber né Brunner, J., Maier, B., Thomä, S. L. J., Kirner, F., Baburin, I. A., Lapkin, D., et al. (2021). Morphogenesis of Magnetite Mesocrystals: Interplay between Nanoparticle Morphology and Solvation Shell. Chemistry of Materials, 33(23), 9119-9130. doi:10.1021/acs.chemmater.1c01941.

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 Creators:
Schlotheuber né Brunner, Julian1, Author
Maier, Britta1, Author
Thomä, Sabrina L. J.1, Author
Kirner, Felizitas1, Author
Baburin, Igora A.1, Author
Lapkin, Dmitry1, Author
Rosenberg, Rose1, Author
Sturm, Sebastian1, Author
Assalauova, Dameli1, Author
Carnis, Jerome1, Author
Kim, Young Yong1, Author
Ren, Zhe1, Author
Westermeier, Fabian1, Author
Theiss, Sebastian1, Author
Borrmann, Horst2, Author              
Polarz, Sebastian1, Author
Eychmüller, Alexander1, Author
Lubk, Axel1, Author
Vartanyants, Ivan A.1, Author
Cölfen, Helmut1, Author
Zobel, Mirijam1, AuthorSturm, Elena V.1, Author more..
Affiliations:
1External Organizations, ou_persistent22              
2Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863410              

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Free keywords: Crystal atomic structure; Distribution functions; Magnetite; Magnetite nanoparticles; Particle size analysis; Solvation; Solvents; Synthesis (chemical), Acid molecules; Building blockes; Complexes structure; Crystallographic orientations; Mesocrystals; Nanoparticle assemblies; Nanoparticle morphology; Packing order; Solvation shell; Solvent molecules, Molecules
 Abstract: Nanoparticle assemblies with long-range packing order and preferred crystallographic orientation of building blocks, i.e., mesocrystals, are of high interest not only because of their unique physical properties but also due to their complex structure and morphogenesis. In this study, faceted mesocrystals have been assembled from the dispersion of truncated cubic-shaped iron oxide nanoparticles stabilized by oleic acid (OA) molecules using the nonsolvent "gas phase diffusion technique"into an organic solvent. The effects of synthesis conditions as well as of the nanoparticle size and shape on the structure and morphogenesis of mesocrystals were examined. The interactions of OA-capped iron oxide nanoparticles with solvent molecules were probed by analytical ultracentrifugation and double difference pair distribution function analysis. It was shown that the structure of the organic shell significantly depends on the nature and polarity of solvent molecules. For the nonpolar solvents, the interaction of the aliphatic chains of OA molecules with the solvent molecules is favorable and the chains extend into the solvent. The solvation shell around the nanoparticles is more extended in nonpolar and more compact in polar solvents. There is a clear trend for more spherical particles to be assembled into the fcc superlattice, whereas less truncated cubes form rhombohedral and tetragonal structures. The observed changes in packing symmetry are reminiscent of structural polymorphism known for "classical"(atomic and molecular) crystals. ©

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Language(s): eng - English
 Dates: 2021-11-262021-11-26
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1021/acs.chemmater.1c01941
BibTex Citekey: SchlotheuberNeBrunner20219119
 Degree: -

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Title: Chemistry of Materials
  Abbreviation : Chem. Mater.
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: - Volume / Issue: 33 (23) Sequence Number: - Start / End Page: 9119 - 9130 Identifier: ISSN: 0897-4756
CoNE: https://pure.mpg.de/cone/journals/resource/954925561571