Synthesis and Properties of Organic Hexahalocerate(III) Salts

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Pohako-Esko K, Wehner T, Schulz P, Heinemann F, Müller-Buschbaum K, Wasserscheid P
Zeitschrift: European Journal of Inorganic Chemistry
Verlag: Wiley-VCH Verlag
Jahr der Veröffentlichung: 2016
Heftnummer: 9
Seitenbereich: 1333-1339
ISSN: 1434-1948


Abstract


A series of hexahalocerate(III) salts with the general formula [cation](3)[CeHal(6)] have been prepared by dissolving anhydrous cerium trihalides in imidazolium halide ionic liquids. Complexes with different anions, [CeCl6](3-), [CeBr6](3-) and [CeBr3Cl3](3-), were synthesized and their cationic alkyl chains were varied. To confirm the structures of the prepared salts, X-ray crystallography was used to characterize [BMIM](3)[CeCl6]. Two different crystal structures were found: [BMIM](3)[CeCl6] and the linear coordination polymer [BMIM](x)[Ce(mu-Cl)(2)Cl-2(EtOH)(2)](x) containing coordinated solvent. All the synthesized compounds were characterized by DSC and TGA. The influence of the cationic and anionic structures on the melting points and decomposition temperatures is discussed. Furthermore, the Ce-containing salts [BMIM](3)[CeHal(6)] show interesting photoluminescence properties: intense Ce3+-based 5d-4f-centred emission from the soft UV-B region to the border of visible light is observed that is driven both by direct excitation of Ce3+ as well as by a sensitizer effect of the [BMIM](+) cation.



FAU-Autoren / FAU-Herausgeber

Heinemann, Frank Dr.
Lehrstuhl für Anorganische und Allgemeine Chemie
Pohako-Esko, Kaija
Lehrstuhl für Chemische Reaktionstechnik
Schulz, Peter Dr.
Lehrstuhl für Chemische Reaktionstechnik
Wasserscheid, Peter Prof. Dr.
Lehrstuhl für Chemische Reaktionstechnik


Autor(en) der externen Einrichtung(en)
Julius-Maximilians-Universität Würzburg


Zitierweisen

APA:
Pohako-Esko, K., Wehner, T., Schulz, P., Heinemann, F., Müller-Buschbaum, K., & Wasserscheid, P. (2016). Synthesis and Properties of Organic Hexahalocerate(III) Salts. European Journal of Inorganic Chemistry, 9, 1333-1339. https://dx.doi.org/10.1002/ejic.201501454

MLA:
Pohako-Esko, Kaija, et al. "Synthesis and Properties of Organic Hexahalocerate(III) Salts." European Journal of Inorganic Chemistry 9 (2016): 1333-1339.

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Zuletzt aktualisiert 2018-07-08 um 22:09