Journal article

Authors list: Pohako-Esko, K; Wehner, T; Schulz, PS; Heinemann, FW; Müller-Buschbaum, K; Wasserscheid, P

Publication year: 2016

Pages: 1333-1339

Journal: European Journal of Inorganic Chemistry

Volume number: 2016

Issue number: 9

ISSN: 1434-1948

DOI Link: https://doi.org/10.1002/ejic.201501454

Publisher: Wiley-VCH Verlag

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.

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

APA Citation style: 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. 2016(9), 1333-1339. https://doi.org/10.1002/ejic.201501454