Journal article

Authors list: Youssef, H; Becker, J; Sedykh, AE; Schäfer, T; Taydakov, IV; Müller-Buschbaum, K

Publication year: 2022

Journal: Journal of Inorganic and General Chemistry

Volume number: 648

Issue number: 24

ISSN: 0044-2313

eISSN: 1521-3749

Open access status: Hybrid

DOI Link: https://doi.org/10.1002/zaac.202200295

Publisher: Wiley

Abstract: 
Ten homoleptic lanthanide containing 1D-coordination polymers, three heterobimetallic lanthanide/alkaline earth complexes as well as two alkaline earth complexes of the formula (1)(infinity)[Ln(2-PyPz)(3)], [Tb(2)AE(2-PyPz)(8)], and [AE(2-PyPz)(2)(2-PyPzH)(2)], Ln=La-Nd, Sm-Ho, AE=Ca, Sr, Ba were obtained by reactions of the lanthanide (Ln) and/or the alkaline earth metals (AE) with the ligand 3-(2-pyridyl)pyrazole. Organic melt based and/or solvothermal synthesis results in a redox reaction. The investigated compounds exhibit fair thermal stability up to 400 degrees C. The Ce3+ compound exhibits a bright and red 5d-based broad band emission with a maximum at around 640 nm under UV excitation marking an example of a strong reduction of the exited 5d states of Ce(III). The co-doping of the Gd-containing coordination polymers with Eu3+ and Tb3+ allows for a shift in the chromaticity from the ion specific 4 f-based emission colors close to white light emission and thus for a versatile tuning of the chromaticity. The co-doping of Eu3+ with Tb3+ and vice versa shows metal-to-metal energy transfer (MMET) between 4 f-levels of Tb3+ and Eu3+, which influences the tuning of the emission colour.

Harvard Citation style: Youssef, H., Becker, J., Sedykh, A., Schäfer, T., Taydakov, I. and Müller-Buschbaum, K. (2022) Red Emitting Cerium(III) and Versatile Luminescence Chromaticity of 1D-Coordination Polymers and Heterobimetallic Ln/AE Pyridylpyrazolate Complexes, Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry, 648(24), Article e202200295. https://doi.org/10.1002/zaac.202200295

APA Citation style: Youssef, H., Becker, J., Sedykh, A., Schäfer, T., Taydakov, I., & Müller-Buschbaum, K. (2022). Red Emitting Cerium(III) and Versatile Luminescence Chromaticity of 1D-Coordination Polymers and Heterobimetallic Ln/AE Pyridylpyrazolate Complexes. Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry. 648(24), Article e202200295. https://doi.org/10.1002/zaac.202200295